S&S Cycle #900-0251 Cylinder Heads – Black
$1,257.96
15% Off
79cc Super Stock? Cylinder Head
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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