S&S Performance Cylinder Heads for Evolution Big Twin

Designed as an out of the box replacement part for smaller displacement engines, these S&S heads provide a significant performance increase. Whether you're looking for an easy way to run a high lift cam, or are faced with refreshing a tired engine with an overhaul, these heads will let your engine breathe while providing the same compatibility as stock heads.

Fitment:

• Stock displacement
• Stock bore strokers
• Big bore engines up to 96"

Features and Benefits:

• Compatible with stock or other flat topped pistons
• Heads can be decked .060" if higher compression is desired
• Port design increases flow, while maintaining velocity specifically designed for stock and small displacement engines
• Compatible with up to .585" lift cams with TDC lifts of .252" intake and .210" exhaust
• Stock diameter ports allows installation of original intake manifolds and exhaust
• Stock temperature sensor location for EFI equipped engines
• Choose from low compression 82cc heads or high compression 73cc heads
• Kit contains two complete heads with valves and springs
• Made in the USA