
Cometic Gasket · New
Cometic Street Pro GM 1970-85 454ci Big Block 4.375 Top End Gasket Kit
MPN PRO1005T · Store SKU cgsPRO1005T
Supplier stock checked 11/7/2026, 6:56:37 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
COMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad. Cometic Street Pro Kits are geared toward the street rider who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild. Chevrolet Mark-IV Big Block V8 Top End Gasket Kit; 4.375in. Bore; .040in. MLS Cylinder Head Gasket Chevrolet Mark-IV Big Block V8 Top End Gasket Kit, 4.375" Bore, .040" MLS Cylinder Head Gasket Chevrolet Mark-IV Big Block V8 Top End Gasket Kit
Manufacturer fitment & guides
Check PRO1005T against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y