Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.300in Bore-.040in MLS Cylinder Head Gasket

If you're rebuilding the top end of your Chevrolet Mark-IV Big Block V8, this Cometic StreetPro Top End Gasket Kit is a solid option. It's designed to fit a wide range of these classic V8s, including popular models like the Chevrolet C10 Suburban and Impala from the 70s and early 80s. This kit gives you all the gaskets and seals you'll need to get your engine back together properly, focusing on the cylinder heads and the components above the block.

Cometic uses quality gasket materials in their StreetPro kits, and this one features Multi-Layer Steel (MLS) cylinder head gaskets. MLS gaskets are well-built and known for their ability to handle the pressures and temperatures found in performance V8 engines. The kit is specifically for engines with a 4.300-inch bore and includes gaskets that are 0.040 inches thick, which is important for maintaining proper compression ratios during your rebuild. You can purchase this top-end kit separately, or combine it with a bottom-end kit for a complete engine overhaul.