S&S Cycle - Wrinkle Black Powdercoat 89cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors)

S&S Cycle - Wrinkle Black Powdercoat 89cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors)

S&S Cycle's 89cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial installation, and even greater performance after more updates! The heads are designed for compression releases. (sold separately; please note S&S rocker boxes are required to use S&S compression releases).

NOTE: NOT for models with OEM compression releases.

Features

• Heads are fully assembled with springs and valves
• 89cc heads work best for motors over 103" or with high-compression pop-up pistons
• 89cc have 2.000" intake and 1.605" exhaust and .640" springs
• Do not include rocker arm components, intake manifold or gaskets
• Heads include four long headbolts, and reuse four long OEM headbolts
• Accept OEM intake manifolds
• 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.