1968-1979 Cadillac Big Block Exhaust Header Gasket
1968–1979 Cadillac Big Block Exhaust Header Gasket
Gasket set engineered for big block header-to-manifold sealing on classic Cadillacs. Prevents exhaust leaks at the critical header flange interface. Built to withstand sustained heat cycling without degradation.
Key Features
- Header-flange specific fit - Seals the junction where headers bolt to the block without compromise.
- Heat-resistant construction - Handles big block exhaust temperatures without warping or leaking.
- Complete gasket set - All gaskets needed for the header installation in one box.
Specs
- Gasket set for big block exhaust header application
- Fits 1968–1979 Cadillac big block engines
What's Included
- Complete exhaust header gasket set
Frequently Asked Questions
Do I need any additional gaskets or seals beyond what's in this set?
This is a complete header gasket set — it covers all the gaskets needed for header installation. If you're also replacing manifold gaskets or other exhaust components, those are separate items.
Should I use any sealant or adhesive with these gaskets?
Header gaskets are designed to seal under clamp pressure alone. Do not use gasket sealer or adhesive unless your service manual specifically calls for it — it can prevent proper seating and cause leaks.
What do I need to know about surface prep before installation?
Both the header flange and block surface must be clean and flat. Wipe away carbon and old gasket material with a scraper, then clean with a solvent rag. A smooth, dry surface ensures a proper seal.
Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.
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