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The Cometic StreetPro top-end gasket kit for Chevrolet Mark‑IV Big Block V8 (4.375 in bore, 0.027 in MLS head gasket) supplies the necessary gaskets and seals for a top-end rebuild. StreetPro kits are aimed at budget-conscious builders and include MLS, AFM, aramid fiber and armor-clad materials. Embossed MLS layers conform to surface finishes and clamp loads while helping distribute load and limit bore distortion in demanding street applications.
Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.375in Bore-.027in MLS Cylinder Head Gasket
