Cometic Gasket · New
Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.630in Bore-.045in MLS Cylinder Head Gasket
MPN PRO1005T-4630-045 · Store SKU cgsPRO1005T-4630-045
Supplier stock checked 11/8/2026, 4:09:39 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. MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel Chevrolet Mark-IV Big Block V8 Top End Gasket Kit; 4.630in. Bore; .045in. MLS Cylinder Head Gasket Chevrolet Mark-IV Big Block V8 Top End Gasket Kit, 4.630" Bore, .045" MLS Cylinder Head Gasket Chevrolet Mark-IV Big Block V8 Top End Gasket Kit
Manufacturer fitment & guides
Check PRO1005T-4630-045 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y