Cometic Street Pro GM Gen-6 L21/29 502 Big Block Bottom End Gasket Kit - PRO1046B

The Cometic Street Pro GM Gen-6 L21/29 502 Big Block Bottom End Gasket Kit - PRO1046B is a precision-engineered gasket kit.

This Cometic complete gasket kit delivers a comprehensive, precision-matched set of seals and gaskets engineered to OE or better specifications. Each component is manufactured from materials specifically chosen for their temperature range, chemical resistance, and compressibility — ensuring every sealing surface in your engine is properly protected during rebuild or performance upgrades.

• Part Number: PRO1046B

Verified fitment: Chevrolet G30 (1996); Chevrolet P30 (1996–1997); GMC G3500 (1996); GMC P3500 (1996–1997).