S&S Performance

488 products

S&S Cycle offers premium high performance solutions for Harley-Davidson® and other v-twin motorcycles that includes engine components, exhaust and fuel systems, engine upgrade kits, and complete engines. Browse the range below!

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$18,420.99

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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$18,420.99

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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$18,420.99

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 ...

$560.99

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

$2,179.99

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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$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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$576.99

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...

$566.99

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...

$542.99

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...

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

$3,168.99

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.

$3,385.99

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.

$3,394.99

$576.99

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...

$561.99

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...

$400.99

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...