Cometic Street Pro GM Gen-5/6 454 Big Block 4.375in Bore .040in Top End Gasket Kit - PRO1045T

The Cometic Street Pro GM Gen-5/6 454 Big Block 4.375in Bore .040in Top End Gasket Kit - PRO1045T is a precision-engineered gasket kit with a 4.375" bore and .375" compressed thickness.

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"
• Thickness: .375" compressed
• Part Number: PRO1045T