Cometic Street Pro GM 1970-76 455ci BUICK Big Block 4.385 Top End Gasket Kit - PRO1011T

The Cometic Street Pro GM 1970-76 455ci BUICK Big Block 4.385 Top End Gasket Kit - PRO1011T is a precision-engineered gasket kit designed for a 4.385" 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: 4.385"
• Part Number: PRO1011T

Verified fitment: Buick Centurion (1971–1973); Buick Century (1973–1974); Buick Electra (1970–1974); Buick Estate Wagon (1970–1974); Buick GS (1970–1972); Buick LeSabre (1970–1974); Buick Regal (1973–1974); Buick Riviera (1970–1974); and 3 more.