S&S CYCLE Cylinder Heads - Twin Cam

Take your performance to the next level with S&S CYCLE Cylinder Heads - Twin Cam! These high port flow heads are fully assembled and ready for action, with springs and valves that can handle up to .640" lift. Choose from 79cc or 89cc heads depending on your engine size and compression needs. While the 79cc heads work great with stock motors, the 89cc heads are perfect for bigger engines or high-compression pop-up pistons. The larger 89cc heads also feature 2.000" intake and 1.605" exhaust valves for maximum power. Don't forget to get S&S rocker boxes (required for S&S compression releases) and OEM intake manifolds to complete your setup. Upgrade now and experience the thrill of pushing your limits on the road! Made in the U.S.A., Must use S&S rocker boxes (PART #90-4110) if S&S compression releases are used., Not compatible with Twin Cooled heads.

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