S&S CYCLE
S&S Cycle Super Stock Cylinder Heads - Twin Cam - Black 900-0251
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- SKU:
- 0930-0139
- MPN:
- 9000251
- Condition:
- New
Frequently bought together:
Description
- High port flow gives great performance now, and more later when additional upgrades are done
- Heads are fully assembled with springs and valves
- Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement; see Compression Ratios chart for specifications
- 79cc heads work great with stock motors for 88" to 103" motors; 89cc heads work best for motors over 103" or with high-compression pop-up pistons
- 79cc have 1.940" intake and 1.575" exhaust valve and springs for up to .650" lift; 89cc have 2.000" intake and 1.605" exhaust and .640" springs
- 79cc heads accept OEM rocker boxes
- 79cc and 89cc heads require S&S Lower Rocker Box Gasket Kit (0934-4574)
- Heads are machined for compression releases (sold separately); S&S rocker boxes required when using S&S compression releases
- 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.
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