S&S Cycle Top End Gasket - 4.125" 90-1914

Made in the U.S.A.

Replacement seal for EVO Big Twin and S&S 4-1/8 bore motors

Made in the U.S.A.Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow out.

Made in the U.S.A.Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow out. Harley-Davidson -- CVO Fat Bob FXDFSE2 -- (2010); Harley-Davidson...

Include a set of S&S Shovelhead-style cylinder heads, a pair of S&S stock bore cylinders (3-7/16" for 74" engines or 3-1/2" for 80"), forged 8:1 compression pistons complete with rings and...