1978-1991 Chevrolet Small Block V8 Exhaust Header Gasket
Seals the joint between your small block headers and cylinder head without blowing out under load. These gaskets handle heat cycles and exhaust pressure that stock gaskets can't take. Critical replacement for any header install or gasket refresh on classic small blocks.
Do I need to clean the old gasket surface before installing these?
Yes. Scrape off all old gasket material and carbon buildup from the cylinder head and header flange. A clean, flat surface is how you keep these sealed tight. Wire brush or gasket scraper works fine.
What hardware do I use to bolt the headers back on?
You'll need header bolts — these gaskets don't include fasteners. Use the hardware that came with your headers, or source new header bolts if those are damaged. Torque them evenly in a star pattern to avoid warping.
Can I reuse the old gaskets if they still look okay?
No. Once you pull headers off, gaskets lose their seal. Reusing them almost guarantees exhaust leaks. Fresh gaskets are cheap insurance against a ticking, smelly header leak down the road.
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