Complete 74" Top End Replacement Kit For 1966-'78 Big Twins With O-ring Heads

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.