Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
This Cometic copper head gasket is specified for Chevrolet Mark‑IV big block V8 engines with a 4.530" bore at .043" thickness. The copper construction reduces clamp load needs and embossed outer layers coated with Viton conform the load across the sealing area. No sealants or re-torque are required, and the design helps limit bore distortion when installed with compatible components.
Cometic Chevy Big Block 4.530in Bore 0.043in Copper Head Gasket
