Cometic Gasket · New
Cometic Chevy Mark-IV BB V8 .042in ArmorCore Exhaust Mani Gskt Set-Brodix Big Duke/Head Hunter Heads
MPN C5418-042 · Store SKU cgsC5418-042
Supplier stock checked 11/7/2026, 6:00:02 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
AFM is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core with temperature resistance of over 250°F. AFM material has an 85 percent recovery while maintaining strong torque retention. AFM does not require gasket sealers or re-torque. Chevrolet Mark-IV Big Block V8 .042in. ArmorCore Exhaust Manifold Gasket Set; Brodix Big Duke/Head Hunter Heads Chevrolet Mark-IV Big Block V8 .042" ArmorCore Exhaust Manifold Gasket Set, Brodix Big Duke/Head Hunter Heads Chevrolet Mark-IV Big Block V8 Exhaust Manifold Gasket Set Designed for extreme cylinder pressures
Manufacturer fitment & guides
Check C5418-042 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
