Cometic Street Pro GM 1970-85 454ci Big Block 4.375 Top End Gasket Kit - PRO1005T

The Cometic Street Pro GM 1970-85 454ci Big Block 4.375 Top End Gasket Kit - PRO1005T is a precision-engineered gasket kit designed for a 4.375" bore.

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.

• Material: Multi-Layer Steel (MLS)
• Bore Size: 4.375"
• Part Number: PRO1005T

Verified fitment: Chevrolet Bel Air (1970–1975); Chevrolet Biscayne (1970–1972); Chevrolet Blazer (1973–1974); Chevrolet Brookwood (1970–1972); Chevrolet C10 (1973–1980); Chevrolet C10 Suburban (1973–1980); Chevrolet C20 (1973–1985); Chevrolet C20 Suburban (1973–1985); and 39 more.