Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles, Harley-Davidson and V-Twin applications.

GM Gen-3 LQ9 Vortec Small Block V8 Top End Gasket Kit, 4.100" Bore, .051" MLS Cylinder Head Gasket.

Cometic Street Pro GM LS V8 6.0L 4.100in Top End Gasket Kit

Top End Gasket Kit; GM LS 6.0L Truck/Van/SUV 4.100in.

GM Gen-3 LQ9 Vortec Small Block V8 Top End Gasket Kit

Cometic Gaskets- Top End Gasket Kit

GM Gen-3 SB V8 Top End Kit

Top End Gasket Kit

Engine Top End Kit