Precision-machined hydraulic tappet assemblies that eliminate valve-train noise and provide reliable, maintenance-free operation.
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Replacement O-ring compatible with Super E & G carburetors.
Replacement O-ring for Super E & G Carburetors — reliable seal for carburetor maintenance.
Fully assembled 79 cc Super Stock® cylinder heads — large valves, high port flow; fits 88"–103" motors, ideal up to 110".
Fully assembled replacement head optimized for smaller displacement engines. Intake manifold and gasket kits sold separately.
Fully assembled heads for '06–'16 stock crankcases. Large intake and exhaust valves, high-flow ports, and S&S® valve springs supporting up to 0.650" lift. Suited for touring and heavier bikes; check compatibility for models with compression releases.
Durable Big Bore upgrade with premium aluminum cylinders and cast-in iron liners. Kit includes pistons, rings and gaskets. Made in the USA. Requires skilled installation.