S&S Cycle #90-0097 - Top End Kit - 3.4375" Bore - 74" Big Twin '66-'84

Features & Benefits
Provide everything you need to replace the top end of a 74" shovelhead engine.S&S top end kits for shovelheads include a set of S&S Super Stock® cylinder heads, a pair of S&S® stock bore cylinders (37/16" for 74" and 31/2" for 80"), S&S 8:1 compression forged pistons, complete with rings and wristpins, manifold clamps, manifold seals, all required hardware, and gaskets.74" top end kits include S&S 106-5495 series 331/32" stroke pistons and o-ring style cylinder heads.

Fitment

Year(s)	Make	Model Code	Model
1966-1978	Harley-Davidson	—	Big Twin