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The Cometic StreetPro top-end gasket kit for Chevrolet Mark‑IV Big Block V8 (4.300 in bore, 0.040 in MLS head gasket) supplies the gaskets and seals needed for a top-end rebuild. StreetPro kits are offered as top-end or bottom-end sets to simplify partial or complete engine work and use MLS, AFM, aramid fiber and armor-clad materials. Embossed MLS layers accommodate varied surfaces and clamp conditions while prioritizing cost-effective quality.
Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.300in Bore-.040in MLS Cylinder Head Gasket
