{"title":"Cylinder Heads \u0026 Components","description":"\u003cp\u003eShop the range of aftermarket motorcycle engine products at Pro Class Custom Parts.\u003c\/p\u003e\n\u003c!----\u003e","products":[{"product_id":"ss90-2001","title":"Exhaust Valve. Fits 89cc or 91cc S\u0026S Heads. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Replacement intake valve for S\u0026amp;S Super Stock Heads.\u003c\/p\u003e\n\u003cp\u003e* Fits Big Twin 1984up, Sportster 1986-2003 \u0026amp; S\u0026amp;S X-Wedge. \u003c\/p\u003e\n\u003cp\u003e* 1.605″ x 4.428″ @ 1.509″ Gauge.\u003c\/p\u003e\n\u003cp\u003e* Sold Each.\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":49879792222500,"sku":"SS90-2001","price":214.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS90-2001.jpg?v=1733914676"},{"product_id":"ss50-0333","title":"Head Bolt Covers. Fits S\u0026S Head Bolts. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Fits Big Twins 1984up \u0026amp; Sportster 1986–2003.\u003c\/p\u003e\n\u003cp\u003e* Magnetic Covers.\u003c\/p\u003e\n\u003cp\u003e* Fits S\u0026amp;S Head Bolts Only.\u003c\/p\u003e\n\u003cp\u003e* Sold as a Pack (4).\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":49879860412708,"sku":"SS50-0333","price":237.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS50-0333.jpg?v=1733917202"},{"product_id":"cm-2011-8","title":"Head Bolts with Polished 12 Point - Chrome. Fits Evo Big Twin 1985-1991, Sportster 1986-1992 \u0026 S\u0026S Heads. - Colony Machine","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Custom Look.\u003c\/p\u003e\n\u003cp\u003e* Polished \u0026amp; Chrome Plated, 12 Point Dome Top Headbolts.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM 16480-85A \u0026amp; OEM 16478-85A\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by Colony Machine !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"COLONY MACHINE","offers":[{"title":"Default Title","offer_id":49880587436324,"sku":"CM-2011-8","price":316.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/CM-2011-8.jpg?v=1733919597"},{"product_id":"fe-1120","title":"585in. Lift ECONO Performance Beehive Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. - Feuling","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFEULING ECONO performance BEEHIVE valve springs designed to handle up to 585 lift camshafts at an economical price. These FEULING BEEHIVE springs are made from the same premium stress relieved conical ovate wire as our HIGH LOAD springs but are developed for economical engine budgets. They have an excellent level of fatigue life and are designed to handle the demands of performance engines with 585 and smaller lift camshafts. Dyno proven and track tested.\u003c\/p\u003e\n\u003cp\u003eFEULING BEEHIVE valve springs use a much smaller and lighter weight retainer which drastically reduces the valve weight creating a much quicker revving and smoother motion than comparable dual valve springs.\u003c\/p\u003e\n\u003cp\u003eKits include: FEULING ECONO BEEHIVE valve springs, lightweight steel retainers, machined heat treated chrome moly spring seats, seat shims, valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FEULING","offers":[{"title":"Default Title","offer_id":49880615485732,"sku":"FE-1120","price":362.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/FE-1120.jpg?v=1774330007"},{"product_id":"fe-1121","title":"585in. Lift ECONO Performance Beehive Valve Spring Kit. Fits Twin Cam 2005-2017 \u0026 Sportster 2004-2021. - Feuling","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFEULING ECONO performance BEEHIVE valve springs designed to handle up to 585 lift camshafts at an economical price. These FEULING BEEHIVE springs are made from the same premium stress relieved conical ovate wire as our HIGH LOAD springs but are developed for economical engine budgets. They have an excellent level of fatigue life and are designed to handle the demands of performance engines with 585 and smaller lift camshafts. Dyno proven and track tested.\u003c\/p\u003e\n\u003cp\u003eFEULING BEEHIVE valve springs use a much smaller and lighter weight retainer which drastically reduces the valve weight creating a much quicker revving and smoother motion than comparable dual valve springs.\u003c\/p\u003e\n\u003cp\u003eKits include: FEULING ECONO BEEHIVE valve springs, lightweight steel retainers, machined heat treated chrome moly spring seats, seat shims, valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FEULING","offers":[{"title":"Default Title","offer_id":49716504035620,"sku":"FE-1121","price":362.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/FE-1121.jpg?v=1774330013"},{"product_id":"ss93-3070","title":"Head Bolt Kit. Fits Twin Cam with S\u0026S Cylinder Heads \u0026 88ci, 95ci, 96ci, 100ci, 106ci \u0026 107ci Engine. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Sold as a Kit.\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":49716549583140,"sku":"SS93-3070","price":374.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS93-3070.jpg?v=1733922934"},{"product_id":"fe-1100","title":".650in. Lift Endurance Beehive Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. - Feuling","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFEULING Endurance BeeHive valve springs are machined from a premium grade Hi-tensile chrome silicon single conical ovate wire, shot-peened with a specially processed thermal heat treat and super NexTex finish to give these valve springs the needed fatigue life to exceed the high demands of V-Twin engines from stock to performance. \u003c\/p\u003e\n\u003cp\u003eKits include: FEULING endurance BeeHive valve springs, lightweight super Titanium heat treated retainers, machined chrome moly spring seats and valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"FEULING","offers":[{"title":"Default Title","offer_id":49716603617572,"sku":"FE-1100","price":577.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/FE-1100.jpg?v=1774329982"},{"product_id":"fe-1105","title":".650in. Lift Endurance Beehive Valve Spring Kit. Fits Twin Cam 2005-2017 \u0026 Sportster 2004-2021. - Feuling","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFEULING Endurance BeeHive valve springs are machined from a premium grade Hi-tensile chrome silicon single conical ovate wire, shot-peened with a specially processed thermal heat treat and super NexTex finish to give these valve springs the needed fatigue life to exceed the high demands of V-Twin engines from stock to performance. \u003c\/p\u003e\n\u003cp\u003eKits include: FEULING endurance BeeHive valve springs, lightweight super Titanium heat treated retainers, machined chrome moly spring seats and valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"FEULING","offers":[{"title":"Default Title","offer_id":49716603683108,"sku":"FE-1105","price":577.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/FE-1105.jpg?v=1774329991"},{"product_id":"ss90-4914","title":"Electric Compression Release Assembly. Replacement for Kit # SS90-4915. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Includes white silicone cap.\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":49880740135204,"sku":"SS90-4914","price":473.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS90-4914.jpg?v=1733926208"},{"product_id":"ss900-1006","title":"Head Bolt Kit. Fits Milwaukee-Eight 2017up. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Heat Treated 8640 Steel.\u003c\/p\u003e\n\u003cp\u003e* 200,000 psi Ultimate Tensile Strength.\u003c\/p\u003e\n\u003cp\u003e* 14% increases in strength over stock.\u003c\/p\u003e\n\u003cp\u003e* Stronger material than stock Head bolts.\u003c\/p\u003e\n\u003cp\u003e* Durable Black Oxide Coating.\u003c\/p\u003e\n\u003cp\u003e* 9\/16″ 12-point head with integral washer\u003c\/p\u003e\n\u003cp\u003e* Formed threads.\u003c\/p\u003e\n\u003cp\u003e* Cold Formed Head.\u003c\/p\u003e\n\u003cp\u003e* Reusable.\u003c\/p\u003e\n\u003cp\u003eTech Tip:-\u003c\/p\u003e\n\u003cp\u003e* The Stock Head Bolts are designed as a stretch to torque with a one time use only. \u003c\/p\u003e\n\u003cp\u003e* Upgrade on OEM # 10200303, 10400069\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":49880732860708,"sku":"SS900-1006","price":553.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS900-1006.jpg?v=1733926268"},{"product_id":"fe-3005","title":"APR Head Bolt Kit. Fits Twin Cam 1999-2017, Evo Big Twin 1985-1999 \u0026 Sportster 1992-2021 - Feuling","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003ePRODUCT DETAILS : \u003c\/p\u003e\n\u003cp\u003e* The strongest bolts available!\u003c\/p\u003e\n\u003cp\u003e* Top engine builders demand quality fasteners! Secure your engine with complete confidence\u003c\/p\u003e\n\u003cp\u003e* Superior in strength and performance to any other cylinder stud head bolt kit on the market, this kit is designed to exceed the needs of high performance engines.\u003c\/p\u003e\n\u003cp\u003e* Dont Risk Head Gasket Failure!\u003c\/p\u003e\n\u003cp\u003e* Precision j-form threads for optimum engagement, to prevent galling and promote more consistent torque loading.\u003c\/p\u003e\n\u003cp\u003e* Special alloyed stainless steel head bolts\u003c\/p\u003e\n\u003cp\u003e* Manufactured by ARP® to Feulings® exact specifications\u003c\/p\u003e\n\u003cp\u003e* Recommended for all V-Twin engines\u003c\/p\u003e\n\u003cp\u003e* Stock replacement\u003c\/p\u003e\n\u003cp\u003e* Kit includes 8 head bolts, moly assembly lubricant and thread sealant\u003c\/p\u003e\n\u003cp\u003e* Made in the U.S.A.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FEULING","offers":[{"title":"Default Title","offer_id":49716678197540,"sku":"FE-3005","price":688.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/FE-3005.jpg?v=1774330155"},{"product_id":"ss90-4915","title":"Electric Compression Release Kit. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Fits Twin Cam with S\u0026amp;S Heads.\u003c\/p\u003e\n\u003cp\u003e* Fits Evo 4″ \u0026amp; 4-1\/8″ Bore Engines with S\u0026amp;S Heads.\u003c\/p\u003e\n\u003cp\u003e* Must be used in conjunction with S\u0026amp;S Rocker Covers.\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":49878520791332,"sku":"SS90-4915","price":1063.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS90-4915.jpg?v=1733938383"},{"product_id":"ss90-1498","title":"Cylinder Head Kit- Natural. Fits Big Twin 1966-1984, Stock Bore. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Fitment to H-D 1966-1978 models will require upgrade to the 1979-1984 style inlet manifold rubbers \u0026amp; clamps.\u003c\/p\u003e\n\u003cp\u003e* .590′ Lift. \u003c\/p\u003e\n\u003cp\u003ePeople who Buy this Product also Purchase:-\u003c\/p\u003e\n\u003cp\u003e* 2 x SS16-0231\u003c\/p\u003e\n\u003cp\u003e* 2 x JGI-27062-78\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":49879596564772,"sku":"SS90-1498","price":3964.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS90-1498.jpg?v=1733947982"},{"product_id":"ss106-3240","title":"89cc Cylinder Head Kit - Black. Fits Twin Cam 2006-2017. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Accepts S\u0026amp;S or OEM pistons.\u003c\/p\u003e\n\u003cp\u003e* Accepts up to 640 lift cams with S\u0026amp;S pistons or if using with stock pistons valve reliefs must be machined in the pistons due to larger valves.\u003c\/p\u003e\n\u003cp\u003e* 2.000″ Intake Valves \u0026amp; 1.605″ Exhaust Valves.\u003c\/p\u003e\n\u003cp\u003e* Includes Lower Rocker Gasket to use with OEM rocker covers # SS90-4120\u003c\/p\u003e\n\u003cp\u003e* Includes 4 Head bolts – use in place of the “short” H-D head bolts # SS930-0027\u003c\/p\u003e\n\u003cp\u003e* Includes Decompression Release Block Off Plugs # SS90-4916-2\u003c\/p\u003e\n\u003cp\u003e* Sold as a Pair.\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* OEM 96ci = 8.9:1 Compression Ratio.\u003c\/p\u003e\n\u003cp\u003e* OEM 103ci = 9.3:1 Compression Ratio.\u003c\/p\u003e\n\u003cp\u003e* OEM 110ci = 9.8:1 Compression Ratio.\u003c\/p\u003e\n\u003cp\u003e* Also Fits TC Throttle-by-Wire Models 2008-2017\u003c\/p\u003e\n\u003cp\u003e* Not compatible with Twin-Cooled™ models (Water Cooled)\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":49905839046948,"sku":"SS106-3240","price":4337.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS106-3240.jpg?v=1733950467"},{"product_id":"ss90-1106","title":"Cylinder Head Kit - Black. Fits Twin Cam 88 1999-2005. 89cc Head Chamber Volume - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* S\u0026amp;S Super Stock Cylinder Head.\u003c\/p\u003e\n\u003cp\u003e* Includes Lower SS90-4120 lower Rocker Gaskets \u003c\/p\u003e\n\u003cp\u003e* Includes Head bolt kit SS930-0027, replaces the short H-D head bolts .\u003c\/p\u003e\n\u003cp\u003e* Includes Decompression Release Block-Off Plugs SS90-4916-2\u003c\/p\u003e\n\u003cp\u003e* Compression releases may be purchased separately if desired.\u003c\/p\u003e\n\u003cp\u003e* Accepts S\u0026amp;S or OEM pistons – refer to Compression Ratio Chart for S\u0026amp;S Super Stock Heads for 1999-05 Big Twins for further Info.\u003c\/p\u003e\n\u003cp\u003e* Accepts up to 640 lift cams with S\u0026amp;S pistons – if using stock H-D pistons, valve reliefs must be machined in the pistons due to larger valves\u003c\/p\u003e\n\u003cp\u003e* 2.000″ Intake Valves \u0026amp; 1.605 Exhaust Valves.\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* OEM H-D rocker covers can be retained when using S\u0026amp;S manual compression release or S\u0026amp;S Easy Start Cams.\u003c\/p\u003e\n\u003cp\u003e* Must use the supplied SS90-4120 lower rocker gaskets when running\u003c\/p\u003e\n\u003cp\u003eOEM Heads\u003c\/p\u003e\n\u003cp\u003e* Heads can be decked up to .060″ to increase compression – normal clearance checks should be carried out.\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":49905839309092,"sku":"SS90-1106","price":4118.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS90-1106.jpg?v=1733950489"},{"product_id":"fe-1107","title":"0.565in. Lift Endurance Valve Spring Kit. Fits Milwaukee-Eight 2017up. - Feuling","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFEULING ENDURANCE BEEHIVE valve springs are a direct bolt in replacement, no spring seat or rocker cover machining required. Endurance springs are machined from a premium grade Hi-tensile chrome silicon single conical ovate wire, shot-peened with a specially processed thermal heat treat and super NexTex finish to give these valve springs the needed fatigue life to exceed the high demands of engines from stock to performance.\u003c\/p\u003e\n\u003cp\u003eThis FEULING BEEHIVE valve spring kit use the factory steel retainers\/Top Collar (HD#18100045).\u003c\/p\u003e\n\u003cp\u003eKits include: matched set of FEULING ENDURACE BEEHIVE valve springs, machined spring seats, seat shims, valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system. \u003c\/p\u003e\n\u003cp\u003eTech Tips:- THIS KIT USES THE FACTORY STOCK STEEL RETAINERS\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:\u003c\/p\u003e\n\u003cp\u003eFor the quickest way to change the M8 Valve Springs Use # JM-5835\u003c\/p\u003e\n\u003cp\u003eRocker Gasket Kit # CG-C10178-FP\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FEULING","offers":[{"title":"Default Title","offer_id":50072460755236,"sku":"FE-1107","price":945.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/FE-1107.jpg?v=1774330000"},{"product_id":"ss90-1004","title":"Super Stock Cylinder Head Kit - Silver. Fits Big Twin 1986-1999, Requires S\u0026S Pistons - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eThese S\u0026amp;S® Super Stock® cylinder heads for 1984-’99 HD® Evolution® Big Twin engines feature a specially shaped combustion chamber and require special pistons that must be purchased separately. (Not compatible with stock style flat topped pistons) Large 2.000″ intake and 1.605″ exhaust valves and high flowing ports supply plenty of air for big inch engines. Compatible with cams with lifts up to .650″. Compatible with stock 3-1\/2″ or 3-5\/8″ bore engines. Order appropriate gasket kits separately for your specific bore size. Natural aluminum finish.\u003c\/p\u003e\n\u003cp\u003eFitment Notes:\u003c\/p\u003e\n\u003cp\u003e———————-\u003c\/p\u003e\n\u003cp\u003e1. Works with 3.5″ and 3-5\/8″ Cylinders\u003c\/p\u003e\n\u003cp\u003e2. Requires SS92-1062 Pistons\u003c\/p\u003e\n\u003cp\u003e3. Requires SS16-1628 manifold when using an E series carb \u0026amp; stock height cyls.\u003c\/p\u003e\n\u003cp\u003e4. Requires SS16-1736 manifold when using CV or Mikuni carb \u0026amp; stock height cyls.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":51071299846436,"sku":"SS90-1004","price":4447.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS90-1004.jpg?v=1758380025"},{"product_id":"cm-8221-20","title":"Stock Head Bolts - Chrome. Fits Pan \u0026 Shovel 1948-1984. - Colony Machine","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eBenefits \u0026amp; Features:-\u003c\/p\u003e\n\u003cp\u003e* OEM Style Chrome Head Bolts \u0026amp; Washers.\u003c\/p\u003e\n\u003cp\u003e* Machined from High Strength Steel.\u003c\/p\u003e\n\u003cp\u003e* Hardened to Original OEM Specifications to Prevent Stretching.\u003c\/p\u003e\n\u003cp\u003e* Bolts Feature Rolled Threads for Superior Strength \u0026amp; Fit.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 16814-77\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by Colony Machine !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"COLONY MACHINE","offers":[{"title":"Default Title","offer_id":51374367473956,"sku":"CM-8221-20","price":209.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/CM-8221-20.jpg?v=1765002565"},{"product_id":"ss900-0958","title":"0.605in. Valve Spring Kit. Fits Milwaukee-Eight 2017up. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Works well with cams up to .605″ lift.\u003c\/p\u003e\n\u003cp\u003e* High Performance conical single wire spring.\u003c\/p\u003e\n\u003cp\u003e* Kit Includes Springs, Top Collars, Keepers, Bottom Collars \u0026amp; Seals.\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:\u003c\/p\u003e\n\u003cp\u003eFor the quickest way to change the M8 Valve Springs Use # JM-5835\u003c\/p\u003e\n\u003cp\u003eRocker Gasket Kit # CG-C10178-FP\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked.\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked.\u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate.\u003c\/p\u003e\n\u003cp\u003e* Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":51374392279332,"sku":"SS900-0958","price":879.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS900-0958.jpg?v=1765007085"},{"product_id":"ss106-6059","title":"76cc Cylinder Head Kit - Silver. Fits Big Twin 1986-1999. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* 585″ Lift.\u003c\/p\u003e\n\u003cp\u003e* Heads works with 3.5″ \u0026amp; 3-5\/8″ cylinders.\u003c\/p\u003e\n\u003cp\u003e* Intake ports are the same size as OEM so the H-D manifold bolts on\u003c\/p\u003e\n\u003cp\u003e* Works with OEM style flat top pistons.\u003c\/p\u003e\n\u003cp\u003e* Front head is machined to accept OEM cyl head temp sensor on EFI models 1995-1998.\u003c\/p\u003e\n\u003cp\u003e* Slight increase in compression CR = 8.8:1 using OEM pistons \u0026amp; 80ci barrels.\u003c\/p\u003e\n\u003cp\u003e* Compatible with any stock or aftermarket, standard or roller tipped rocker arms.\u003c\/p\u003e\n\u003cp\u003ePeople who Buy this Product also Purchase:-\u003c\/p\u003e\n\u003cp\u003e* 3.5″ OEM replacement Black Cylinders # SS910-0179\u003c\/p\u003e\n\u003cp\u003e* Top End Gasket Kit #’s JGI-17033-83-MLS 1984-1991 or JGI-17040-92-MLS 1992-1999.\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":51374407221540,"sku":"SS106-6059","price":3225.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS106-6059.jpg?v=1765009885"},{"product_id":"ss106-6064","title":"76cc Cylinder Head Kit - Black. Fits Big Twin 1986-1999. - S\u0026S","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* 585″ Lift.\u003c\/p\u003e\n\u003cp\u003e* Works with 3-1\/2″ \u0026amp; 3-5\/8″ Cylinders.\u003c\/p\u003e\n\u003cp\u003e* Intake ports are the same size as OEM so the HD manifold bolts on.\u003c\/p\u003e\n\u003cp\u003e* Works with OEM style flat top pistons.\u003c\/p\u003e\n\u003cp\u003e* Front head is machined to accept OEM cyl head temp sensor on EFI models 1995-1998. \u003c\/p\u003e\n\u003cp\u003e* Slight increase in compression. CR = 8.8:1 using OEM pistons \u0026amp; 80ci barrels.\u003c\/p\u003e\n\u003cp\u003e* Compatible with any stock or aftermarket, standard or roller tipped rocker arms.\u003c\/p\u003e\n\u003cp\u003ePeople who Buy this Product also Purchase:-\u003c\/p\u003e\n\u003cp\u003e* 3-1\/2″ OEM replacement Black Cylinders # SS910-0182 \u003c\/p\u003e\n\u003cp\u003e* Top End Gasket Kit #’s JGI-17033-83-MLS 1984-1991 or JGI-17040-92-MLS 1992-1999.\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SS","offers":[{"title":"Default Title","offer_id":51374407549220,"sku":"SS106-6064","price":3602.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/SS106-6064.jpg?v=1765009949"},{"product_id":"fe-3010","title":"ARP Head Bolts - Stainless Steel. Fits Pan \u0026 Shovel 1948-1984. - Feuling","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eBenefits \u0026amp; Features:-\u003c\/p\u003e\n\u003cp\u003e* Quality hex head, hardened stainless steel bolts with a SHOW polish and corrosion-resistant finish\u003c\/p\u003e\n\u003cp\u003e* Tensile strength rated @ 180,000 psi – Superior \u0026amp; Stronger than OEM \u0026amp; stronger than grade 8 fasteners\u003c\/p\u003e\n\u003cp\u003e* Wide underhead flange bolts and hardened chamfered washers provide even load distribution for optimum sealing of surfaces – preventing leaks.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 16814-77\u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by ARP!\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FEULING","offers":[{"title":"Default Title","offer_id":51396535877924,"sku":"FE-3010","price":316.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/FE-3010.jpg?v=1774330170"},{"product_id":"av-vsk6000s","title":"Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. Beehive Springs with .600in. Lift. - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .600″\u003c\/p\u003e\n\u003cp\u003e* Beehive steel valve spring kit\u003c\/p\u003e\n\u003cp\u003e* Ultra pure chrome silicon+Nickle spring wire\u003c\/p\u003e\n\u003cp\u003e* Extra processing for fatigue resistance\u003c\/p\u003e\n\u003cp\u003e* Resist pressure loss \u0026amp; fatigue associated with extremely aggressive cams in high compression engines\u003c\/p\u003e\n\u003cp\u003e* Reduce vibration \u0026amp; harmonics\u003c\/p\u003e\n\u003cp\u003e* Includes springs,retainers \u0026amp; upper \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003e* 162lbs @ 1.860″, 340lbs @ 1.260″\u003c\/p\u003e\n\u003cp\u003e* Coil bind 1.200″\u003c\/p\u003e\n\u003cp\u003e* Small end ID = .650″, OD= 1.085″\u003c\/p\u003e\n\u003cp\u003e* Large end ID = 1.000″, OD = 1.445″\u003c\/p\u003e\n\u003cp\u003e* CNC machined keepers\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205197951268,"sku":"AV-VSK6000S","price":356.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK6000S.jpg?v=1772973418"},{"product_id":"av-vsk6000s-7sg","title":"Valve Spring Kit. Fits Twin Cam 2005-2017, Sportster 2004-2021. Beehive Springs with .600in. Lift. - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .600″\u003c\/p\u003e\n\u003cp\u003e* Beehive steel valve spring kit\u003c\/p\u003e\n\u003cp\u003e* Use with OEM style AVV guide seals\u003c\/p\u003e\n\u003cp\u003e* Fits both Single \u0026amp; Triple groove valves\u003c\/p\u003e\n\u003cp\u003e* Ultra pure chrome silicon+Nickle spring wire\u003c\/p\u003e\n\u003cp\u003e* Extra processing for fatigue resistance\u003c\/p\u003e\n\u003cp\u003e* Resist pressure loss \u0026amp; fatigue associated with extremely aggressive cams in high compression engines\u003c\/p\u003e\n\u003cp\u003e* Reduce vibration \u0026amp; harmonics\u003c\/p\u003e\n\u003cp\u003e* Includes springs,retainers \u0026amp; upper \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003e* 162lbs @ 1.860, 340lbs @ 1.260″\u003c\/p\u003e\n\u003cp\u003e* coil bind 1.200″\u003c\/p\u003e\n\u003cp\u003e* Small end ID = .650″, OD= 1.085″\u003c\/p\u003e\n\u003cp\u003e* Large end ID = 1.000″, OD = 1.445″\u003c\/p\u003e\n\u003cp\u003e* CNC machined keepers\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18013-03A\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205197984036,"sku":"AV-VSK6000S-7SG","price":356.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK6000S-7SG.jpg?v=1772973421"},{"product_id":"av-vsk600s","title":"Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. Steel Double Springs with .600in. Lift. - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .600″\u003c\/p\u003e\n\u003cp\u003e* Steel Double Spring Kit\u003c\/p\u003e\n\u003cp\u003e* Ultra pure chrome silicon+Nickle spring wire\u003c\/p\u003e\n\u003cp\u003e* Extra processing for fatigue resistance\u003c\/p\u003e\n\u003cp\u003e* 1.375″ for better clearance inside rocker cvr\u003c\/p\u003e\n\u003cp\u003e* Springs feature chamfered tops to match smaller retainers\u003c\/p\u003e\n\u003cp\u003e* Includes springs,retainers \u0026amp; upper \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003e* 155lbs@1.875, 175lbs@1.815″\u003c\/p\u003e\n\u003cp\u003e* coil bind 1.080″\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205198115108,"sku":"AV-VSK600S","price":360.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK600S.jpg?v=1772973432"},{"product_id":"av-vsk65007sg","title":"Valve Spring Kit. Fits Twin Cam 2005-2017, Sportster 2004up. Beehive Springs with .650in. Lift. - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .650″\u003c\/p\u003e\n\u003cp\u003e* Beehive steel valve spring kit\u003c\/p\u003e\n\u003cp\u003e* Use with AV-V7MMB guide seals\u003c\/p\u003e\n\u003cp\u003e* Fits both Single \u0026amp; Triple groove valves\u003c\/p\u003e\n\u003cp\u003e* Ultra pure chrome silicon+Nickle spring wire\u003c\/p\u003e\n\u003cp\u003e* Extra processing for fatigue resistance\u003c\/p\u003e\n\u003cp\u003e* Resist pressure loss \u0026amp; fatigue associated with extremely aggressive cams in high compression engines\u003c\/p\u003e\n\u003cp\u003e* Reduce vibration \u0026amp; harmonics\u003c\/p\u003e\n\u003cp\u003e* Includes springs,retainers \u0026amp; upper \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003e* 175lbs @ 1.860, 370lbs @ 1.250″\u003c\/p\u003e\n\u003cp\u003e* Coil bind 1.150″\u003c\/p\u003e\n\u003cp\u003e* Small end ID = .740″, OD= 1.185″\u003c\/p\u003e\n\u003cp\u003e* Large end ID = 1.055″, OD = 1.500″\u003c\/p\u003e\n\u003cp\u003e* CNC machined keepers\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205198246180,"sku":"AV-VSK65007SG","price":360.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK65007SG.jpg?v=1772973444"},{"product_id":"av-vsk6500","title":"Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. Beehive Springs with .650in. Lift. - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .650″\u003c\/p\u003e\n\u003cp\u003e* Beehive steel valve spring kit\u003c\/p\u003e\n\u003cp\u003e* Ultra pure chrome silicon+Nickle spring wire\u003c\/p\u003e\n\u003cp\u003e* Extra processing for fatigue resistance\u003c\/p\u003e\n\u003cp\u003e* Resist pressure loss \u0026amp; fatigue associated with extremely aggressive cams in high compression engines\u003c\/p\u003e\n\u003cp\u003e* Reduce vibration \u0026amp; harmonics\u003c\/p\u003e\n\u003cp\u003e* Includes springs,retainers \u0026amp; upper \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003e* 185lbs@1.860, 370lbs@1.250″\u003c\/p\u003e\n\u003cp\u003e* coil bind 1.150″\u003c\/p\u003e\n\u003cp\u003e* Small end ID = .740″, OD= 1.185″\u003c\/p\u003e\n\u003cp\u003e* Large end ID = 1.055″, OD = 1.500″\u003c\/p\u003e\n\u003cp\u003e* CNC machined keepers\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205198311716,"sku":"AV-VSK6500","price":361.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK6500.jpg?v=1772973447"},{"product_id":"av-vsk590","title":"Valve Spring Kit. Fits Big Twin 1948-1984. .590in. Lift - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .590″\u003c\/p\u003e\n\u003cp\u003e* High Performance Spring Kit\u003c\/p\u003e\n\u003cp\u003e* Silicon \u0026amp; Vanadium alloy spring wire\u003c\/p\u003e\n\u003cp\u003e* Increased travel before coil bind\u003c\/p\u003e\n\u003cp\u003e* Complete Kit includes: springs, retainers, keepers \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205198901540,"sku":"AV-VSK590","price":394.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK590.jpg?v=1772973484"},{"product_id":"av-vsk470","title":"Valve Spring Kit. Fits Big Twin 1948-1984. .470in. Lift. - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .470″\u003c\/p\u003e\n\u003cp\u003e* High Performance Spring Kit\u003c\/p\u003e\n\u003cp\u003e* Silicon \u0026amp; Vanadium alloy spring wire\u003c\/p\u003e\n\u003cp\u003e* Increased travel before coil bind\u003c\/p\u003e\n\u003cp\u003e* Complete Kit includes: springs, retainers, keepers \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18202-82\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18205-57\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18222-48A\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205198934308,"sku":"AV-VSK470","price":393.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK470.jpg?v=1772973487"},{"product_id":"av-vsk530","title":"Valve Spring Kit. Fits Big Twin 1948-1984. .530in. Lift - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .530″\u003c\/p\u003e\n\u003cp\u003e* High Performance Spring Kit\u003c\/p\u003e\n\u003cp\u003e* Silicon \u0026amp; Vanadium alloy spring wire\u003c\/p\u003e\n\u003cp\u003e* Increased travel before coil bind\u003c\/p\u003e\n\u003cp\u003e* Complete Kit includes: springs, retainers, keepers \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205198967076,"sku":"AV-VSK530","price":393.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK530.jpg?v=1772973491"},{"product_id":"av-vsk650s","title":"Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. Steel Double Springs with .650in. Lift. - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .650″\u003c\/p\u003e\n\u003cp\u003e* Steel Double Spring Kit\u003c\/p\u003e\n\u003cp\u003e* Ultra pure chrome silicon+Nickle spring wire\u003c\/p\u003e\n\u003cp\u003e* Extra processing for fatigue resistance\u003c\/p\u003e\n\u003cp\u003e* 1.375″ for better clearance inside rocker cvr\u003c\/p\u003e\n\u003cp\u003e* Springs feature chamfered tops to match smaller retainers\u003c\/p\u003e\n\u003cp\u003e* Includes springs,retainers \u0026amp; upper \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003e* 185lbs @ 1.860, 460lbs @ 1.160″\u003c\/p\u003e\n\u003cp\u003e* Coil bind 1.080″\u003c\/p\u003e\n\u003cp\u003e* Maximum lift = .650″\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205199556900,"sku":"AV-VSK650S","price":447.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK650S.jpg?v=1772973537"},{"product_id":"av-vsk8000tghp","title":"0.615in. Valve Spring Kit. Fits Milwaukee-Eight 2017up - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits \u003c\/p\u003e\n\u003cp\u003e* Works well with cams up to .615″ lift\u003c\/p\u003e\n\u003cp\u003e* High Performance conical single wire spring\u003c\/p\u003e\n\u003cp\u003e* Kit Includes: Springs, Top Collars, Keepers, Bottom Collare\/Seals\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:\u003c\/p\u003e\n\u003cp\u003eFor the quickest way to change the M8 Valve Springs Use # JM-5835\u003c\/p\u003e\n\u003cp\u003eRocker Gasket Kit # CG-C10178-FP\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e* Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars\u003c\/p\u003e\n\u003cp\u003eProudly Made in Canada\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205201785124,"sku":"AV-VSK8000TGHP","price":723.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK8000TGHP.jpg?v=1772973694"},{"product_id":"av-vsk675t","title":"Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. Steel Double Springs with .675in. Lift. Titanium Retainers! - AV\u0026V","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003e* Extreme Duty Valve Spring Kit – Titanium Retainers – .675″ Lift\u003c\/p\u003e\n\u003cp\u003e* Specifically designed \u0026amp; processed with extra shot peening \u0026amp; nitrided to resist failure under the most extreme conditions.\u003c\/p\u003e\n\u003cp\u003e* For use with serious high performance cams 0.640-.675″ lift\u003c\/p\u003e\n\u003cp\u003e* Includes springs,retainers \u0026amp; upper \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003e* 185lbs @ 1.860, 460lbs @ 1.160″\u003c\/p\u003e\n\u003cp\u003e* Coil bind 1.080″\u003c\/p\u003e\n\u003cp\u003e* Maximum lift = .675″\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AVV","offers":[{"title":"Default Title","offer_id":52205202538788,"sku":"AV-VSK675T","price":809.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/AV-VSK675T.jpg?v=1772973740"},{"product_id":"fe-3007","title":"ARP Head Bolt Kit. Fits Milwaukee-Eight 2017up. - Feuling","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003eSTAINLESS 12 POINT HEAD BOLTS UHL 3.215, QTY. 8\u003c\/p\u003e\n\u003cp\u003e* Kit includes 8 head bolts, moly assembly lubricant and thread sealant\u003c\/p\u003e\n\u003cp\u003e* The strongest studs \u0026amp; bolts available!\u003c\/p\u003e\n\u003cp\u003e* Top engine builders demand quality fasteners! Secure your engine with complete confidence\u003c\/p\u003e\n\u003cp\u003e* Superior in strength and performance to any other cylinder stud head bolt kit on the market, this kit is designed to exceed the needs of high performance engines.\u003c\/p\u003e\n\u003cp\u003e* Dont Risk Head Gasket Failure!\u003c\/p\u003e\n\u003cp\u003e* Stock Cylinder studs are designed as a stretch to torque stud with a one time use only lifespan\u003c\/p\u003e\n\u003cp\u003e* Feuling® studs are installed to a torque spec can be reused and carry a lifetime warranty\u003c\/p\u003e\n\u003cp\u003e* Heat-treated 8740 chrome moly steel studs\u003c\/p\u003e\n\u003cp\u003e* Precision j-form threads for optimum engagement, to prevent galling and promote more consistent torque loading.\u003c\/p\u003e\n\u003cp\u003e* Special alloyed stainless steel head bolts\u003c\/p\u003e\n\u003cp\u003e* Manufactured by ARP® to Feulings® exact specifications\u003c\/p\u003e\n\u003cp\u003e* Recommended for all V-Twin engines\u003c\/p\u003e\n\u003cp\u003e* Stock replacement – Upgrade on OEM # 10400069\u003c\/p\u003e\n\u003cp\u003e* Made in the U.S.A.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FEULING","offers":[{"title":"Default Title","offer_id":52205203226916,"sku":"FE-3007","price":912.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/FE-3007.jpg?v=1774330163"},{"product_id":"kpm-20-22800","title":"Valve Kit. Fits 1200cc Sportster 1988-2003 - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eKit Includes:\u003c\/p\u003e\n\u003cp\u003e* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)\u003c\/p\u003e\n\u003cp\u003e* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18023-87 \u0026amp; 18024-87\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:-\u003c\/p\u003e\n\u003cp\u003eTop End Gasket Kit # CG-C9762 or CG-C9763\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949309583652,"sku":"KPM-20-22800","price":310.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-22800.jpg?v=1778593827"},{"product_id":"kpm-20-22600","title":"Valve Kit. Fits Evolution Big Twin 1984-1999 - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eKit Includes:\u003c\/p\u003e\n\u003cp\u003e* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)\u003c\/p\u003e\n\u003cp\u003e* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18074-83 \u0026amp; 18082-83\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:-\u003c\/p\u003e\n\u003cp\u003eTop End Gasket Kit # CG-C9747 or CG-C9635\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949309616420,"sku":"KPM-20-22600","price":300.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-22600.jpg?v=1778593829"},{"product_id":"kpm-20-22400","title":"Valve Kit. Fits Big Twin 1966-1984 - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eKit Includes:\u003c\/p\u003e\n\u003cp\u003e* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)\u003c\/p\u003e\n\u003cp\u003e* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18074-66, 18075-80, 18075-81, 18078-80, 18078-81, 18082-57, 18087-81\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:-\u003c\/p\u003e\n\u003cp\u003eTop End Gasket Kit # CG-C9967 or JGI-17034-66-X\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949309714724,"sku":"KPM-20-22400","price":310.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-22400.jpg?v=1778593834"},{"product_id":"kpm-20-22100","title":"Valve Kit. Fits Panhead Big Twin 1948-1965 - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eKit Includes:\u003c\/p\u003e\n\u003cp\u003e* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)\u003c\/p\u003e\n\u003cp\u003e* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18071-48 \u0026amp; 18082-57\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:-\u003c\/p\u003e\n\u003cp\u003eTop End Gasket Kit # CG-C9968 or JGI-17034-48-XF\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949309747492,"sku":"KPM-20-22100","price":310.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-22100.jpg?v=1778593836"},{"product_id":"kpm-20-21400","title":"Valve Spring Kit. Fits Twin Cam 2005-2017 \u0026 Sportster 2004-2021. Beehive Springs with .610in. Lift - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eBy taking advantage of the latest development in valve spring wire chemistry and manufacturing techniques, KPMI has developed ovate wire Beehive style springs that will live and perform at a high level in Harley Davidson applications. By coupling these developments with strict KPMI design protocols and employing multiple design, simulation, and FEA analysis software, we were we able to overcome the torsional stresses unique to ovate wire springs that previously severely limited their operating parameters.\u003c\/p\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .610″\u003c\/p\u003e\n\u003cp\u003eInstalled Height: 1.860″\u003c\/p\u003e\n\u003cp\u003eSeat Pressure: 175#\u003c\/p\u003e\n\u003cp\u003eOpen Pressure: 400#\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949310697764,"sku":"KPM-20-21400","price":344.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-21400.jpg?v=1778593840"},{"product_id":"kpm-20-21300","title":"Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. Beehive Springs with .610in. Lift - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eBy taking advantage of the latest development in valve spring wire chemistry and manufacturing techniques, KPMI has developed ovate wire Beehive style springs that will live and perform at a high level in Harley Davidson applications. By coupling these developments with strict KPMI design protocols and employing multiple design, simulation, and FEA analysis software, we were we able to overcome the torsional stresses unique to ovate wire springs that previously severely limited their operating parameters.\u003c\/p\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .610″\u003c\/p\u003e\n\u003cp\u003eInstalled Height: 1.860″\u003c\/p\u003e\n\u003cp\u003eSeat Pressure: 175#\u003c\/p\u003e\n\u003cp\u003eOpen Pressure: 400#\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949310730532,"sku":"KPM-20-21300","price":344.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-21300.jpg?v=1778593842"},{"product_id":"kpm-20-22700","title":"Valve Kit. Fits 883cc Sportster 1986-2003 - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eKit Includes:\u003c\/p\u003e\n\u003cp\u003e* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)\u003c\/p\u003e\n\u003cp\u003e* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18030-86 \u0026amp; 18031-86\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:-\u003c\/p\u003e\n\u003cp\u003eTop End Gasket Kit # CG-C9762 or CG-C9763\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949310796068,"sku":"KPM-20-22700","price":362.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-22700.jpg?v=1778593844"},{"product_id":"kpm-20-22300","title":"Valve Kit. Fits Sportster 1970-1983 - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eKit Includes:\u003c\/p\u003e\n\u003cp\u003e* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)\u003c\/p\u003e\n\u003cp\u003e* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18027-80 \u0026amp; 18033-80\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:-\u003c\/p\u003e\n\u003cp\u003eTop End Gasket Kit # JGI-17030-72-A or CG-C9052\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949310828836,"sku":"KPM-20-22300","price":362.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-22300.jpg?v=1778593846"},{"product_id":"kpm-20-21150","title":"Valve Spring Kit. Fits Big Twin 1978-1984. .600in. Lift - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .600″\u003c\/p\u003e\n\u003cp\u003e* Chromium-Silicon (CrSi) valve springs are high-tensile, durable steel alloys designed for high-performance engines\u003c\/p\u003e\n\u003cp\u003e* Complete Kit includes: springs, retainers, keepers \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949310861604,"sku":"KPM-20-21150","price":364.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-21150.jpg?v=1778593848"},{"product_id":"kpm-20-20450","title":"Valve Spring Kit. Fits Big Twin 1966-1977. .600in. Lift - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .600″\u003c\/p\u003e\n\u003cp\u003e* Chromium-Silicon (CrSi) valve springs are high-tensile, durable steel alloys designed for high-performance engines\u003c\/p\u003e\n\u003cp\u003e* Complete Kit includes: springs, retainers, keepers \u0026amp; lower collars\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949310959908,"sku":"KPM-20-20450","price":364.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-20450.jpg?v=1778593850"},{"product_id":"kpm-20-20132","title":"Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. Steel Double Springs with .600in. Lift - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eSince 1939, KPMI® has taken great pride in our ability to design innovative performance improvements for valvetrains. This innovative ability has never been more apparent than with the development of the high-tech lightweight racing valve spring kits for the incredibly stressed and torturous environment in today’s V-Twin engines.\u003c\/p\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .600″\u003c\/p\u003e\n\u003cp\u003eInstalled Height: 1.810″\u003c\/p\u003e\n\u003cp\u003eSeat Pressure: 163#\u003c\/p\u003e\n\u003cp\u003eOpen Pressure: 361#\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949311025444,"sku":"KPM-20-20132","price":375.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-20132.jpg?v=1778593853"},{"product_id":"kpm-20-21500","title":"Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. Beehive Springs with .660in. Lift - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eBy taking advantage of the latest development in valve spring wire chemistry and manufacturing techniques, KPMI® has developed ovate wire Beehive style springs that will live and perform at a high level in Harley Davidson® applications. By coupling these developments with strict KPMI® design protocols and employing multiple design, simulation, and FEA analysis software, we were we able to overcome the torsional stresses unique to ovate wire springs that previously severely limited their operating parameters.\u003c\/p\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .660″\u003c\/p\u003e\n\u003cp\u003eInstalled Height: 1.860″\u003c\/p\u003e\n\u003cp\u003eSeat Pressure: 178#\u003c\/p\u003e\n\u003cp\u003eOpen Pressure: 371#\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949311058212,"sku":"KPM-20-21500","price":379.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-21500.jpg?v=1778593854"},{"product_id":"kpm-20-21550","title":"Valve Spring Kit. Fits Twin Cam 2005-2017 \u0026 Sportster 2004-2021. Beehive Springs with .660in. Lift - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eBy taking advantage of the latest development in valve spring wire chemistry and manufacturing techniques, KPMI has developed ovate wire Beehive style springs that will live and perform at a high level in Harley Davidson applications. By coupling these developments with strict KPMI design protocols and employing multiple design, simulation, and FEA analysis software, we were we able to overcome the torsional stresses unique to ovate wire springs that previously severely limited their operating parameters.\u003c\/p\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .660″\u003c\/p\u003e\n\u003cp\u003eInstalled Height: 1.860″\u003c\/p\u003e\n\u003cp\u003eSeat Pressure: 178#\u003c\/p\u003e\n\u003cp\u003eOpen Pressure: 371#\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949311090980,"sku":"KPM-20-21550","price":390.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-21550.jpg?v=1778593857"},{"product_id":"kpm-20-21650","title":"Valve Spring Kit. Fits Big Twin 1984-2004, Sportster \u0026 Buell 1986-2003. Steel Double Springs with .650in. Lift - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eSince 1939, KPMI® has taken great pride in our ability to design innovative performance improvements for valvetrains. This innovative ability has never been more apparent than with the development of the high-tech lightweight racing valve spring kits for the incredibly stressed and torturous environment in today’s V-Twin engines.\u003c\/p\u003e\n\u003cp\u003eNote: Maximum Recommended Lift = .650″\u003c\/p\u003e\n\u003cp\u003eInstalled Height: 1.860″\u003c\/p\u003e\n\u003cp\u003eSeat Pressure: 185#\u003c\/p\u003e\n\u003cp\u003eOpen Pressure: 440#\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Rocker box clearance must be checked\u003c\/p\u003e\n\u003cp\u003e* Spring travel must be checked \u003c\/p\u003e\n\u003cp\u003e* Valve timing must be accurate\u003c\/p\u003e\n\u003cp\u003e** Over revving will lead to pre-mature failure of Valve Springs \u0026amp; collars.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949311156516,"sku":"KPM-20-21650","price":398.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-21650.jpg?v=1778593859"},{"product_id":"kpm-20-22900","title":"Valve Kit. Fits 1200cc Sportster 2004-2021 - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003eKit Includes:\u003c\/p\u003e\n\u003cp\u003e* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)\u003c\/p\u003e\n\u003cp\u003e* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.\u003c\/p\u003e\n\u003cp\u003e* Replaces OEM # 18690-02 \u0026amp; 18691-02\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:-\u003c\/p\u003e\n\u003cp\u003eTop End Gasket Kit # CG-C9970 or CG-C9177\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949311320356,"sku":"KPM-20-22900","price":497.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/image_coming_soon_498fb2fe-0f90-4e72-951a-24b2b226c6b5.jpg?v=1778593869"},{"product_id":"kpm-20-22550","title":"Valve \u0026 Spring Engine Kit. Fits 80ci Big Twin 1978-1984 - Kibblewhite","description":"\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cp\u003e* Save time money when purchasing this kit\u003c\/p\u003e\n\u003cp\u003e* One package, everything you need for a cylinder head overhaul\u003c\/p\u003e\n\u003cp\u003e* Double your service life over OEM using KPMI Valvetrain products\u003c\/p\u003e\n\u003cp\u003eKit Includes:\u003c\/p\u003e\n\u003cp\u003e* KPMI complete 0.415″ Lift Valve Spring Kit (meets or exceeds OEM)\u003c\/p\u003e\n\u003cp\u003e* Seals \u0026amp; Keepers\u003c\/p\u003e\n\u003cp\u003e* KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)\u003c\/p\u003e\n\u003cp\u003eSuggested Additional Purchase:-\u003c\/p\u003e\n\u003cp\u003eTop End Gasket Kit # CG-C9967 or JGI-17034-66-X\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":53949311353124,"sku":"KPM-20-22550","price":562.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/9201\/3860\/files\/KPM-20-22550.jpg?v=1778593871"}],"url":"https:\/\/www.proclasscustoms.co.nz\/collections\/cylinder-heads-components.oembed?page=4","provider":"Pro Class Customs","version":"1.0","type":"link"}