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499 products

124ci Hot Set Up Kit with 91cc S&S Cylinder Heads – Black. Fits Twin Cam Softail 2007-2017.

$12,771.99

Features & Benefits:- * Fits Softail 2007-2017 with Twin Cam B Engine. * This 124ci big bore/stroker Hot Set Up Kit transforms a stock engine into a 124ci monster. * Includes S&S 4-1/8″ b...

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$19,033.99

A lot of riders have already invested in performance upgrades for their stock engine by the time they are ready to move up to a complete big inch engine. Wouldnt it be nice to be able to save som...

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$19,033.99

Features & Benefits:- * Fits Both Stock Twin Cam 96ci & 103ci bolt pattern. * Engines are fully assembled up to the intake port face, therefore the customer will need to purchase a stock l...

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$19,033.99

Features & Benefits:- * Fits Both Stock Twin Cam 96ci & 103ci bolt patterns. * Engines are fully assembled up to the intake port face, therefore the customer will need to purchase a stock ...

$566.99

Features & Benefits:- * Super strong Gates Poly x Carbon X3N material. * Robust carbon tensile cord combines minimal stretch with extraordinary strength and load carrying capacity * Significan...

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1250cc Big Bore Kit – Black. Fits Sportster 1986-2021

$1,955.99

Features & Benefits:- * Fits Sportster 1986-2021 including Sportster 2004-2021. * Will Not Fit XR1200 * Includes Black Cylinders. * Includes Flat Top Pistons. * Includes Head Gaskets. * 10.3:1...

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$569.99

Features & Benefits:- * Super strong Gates Poly x Carbon X3N material. * Robust carbon tensile cord combines minimal stretch with extraordinary strength and load carrying capacity * Significan...

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$579.99

Features & Benefits:- * Super strong Gates Poly x Carbon X3N material. * Robust carbon tensile cord combines minimal stretch with extraordinary strength and load carrying capacity * Significan...

$573.99

Features & Benefits:- * Also Fits Softail 1993-1999 with 1-1/2″ x 61 Tooth Rear Pulley. * Also Fits Dyna 1991-1999 with 1-1/2″ x 61 Tooth Rear Pulley. * Super strong Gates Poly x Carbon X3N ma...

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$559.99

Features & Benefits:- * Super strong Gates Poly x Carbon X3N material. * Robust carbon tensile cord combines minimal stretch with extraordinary strength and load carrying capacity * Significan...

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128ci Big Bore Kit with Highlighted Fins – Black. Fits Milwaukee-Eight 2017up 114ci Engine.

$3,490.99

Features & Benefits:- * Upgrades Milwaukee-Eight 114ci to 128ci * 114ci to 128ci Big Bore Kit * 4.250″ Bore * 4.500″ Stroke (4-1/2″) * Forged Pistons. * 11.1 Compression Ratio. * Wrinkle Blac...

129ci Big Bore Kit with Highlighted Fins – Black. Fits Milwaukee-Eight 2017up with 107ci Engine.

$3,492.99

Features & Benefits:- * Upgrades Milwaukee-Eight 107ci to 129ci. * 4.320″ Bore. * 4.375″ Stroke (4-3/8″). * Forged Pistons. * 11.1 Compression Ratio. * Wrinkle Black Finish. * With Highlighted...

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129ci Big Bore Kit with Non-Highlighted Fins – Black. Fits Milwaukee-Eight 2017up with 107ci Engine.

$3,501.99

$594.99

Features & Benefits:- * Also Fits Softail 1986-1999 with 1-1/2″ x 65 Tooth Rear Pulley. * Also Fits Dyna 1991-1999 with 1-1/2″ x 65 Tooth Rear Pulley. * Super strong Gates Poly x Carbon X3N ma...

$578.99

Features & Benefits:- * Super strong Gates Poly x Carbon X3N material. * Robust carbon tensile cord combines minimal stretch with extraordinary strength and load carrying capacity * Significan...