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These Spectre header gaskets fit 1958-‘86 small block Chevrolet 265-400 engines with 1.625 inch diameter round ports. This is a premium, 1/8 inch extra-thick header gasket set that conforms to warped header flanges to help stop header leaks. The gaskets are made from compressed ceramic fiber (CCF) which will not deteriorate or crack from excessive heat or pressure.
- Fits 1958-‘86 Chevrolet small block 265-400 engines
- Conforms to stock 1.625 inch diameter round ports
- Made from compressed ceramic fiber (CCF) to withstand excessive heat or pressure
- Made from compressed ceramic fiber (CCF) to withstand excessive heat or pressure
- The 1/8 inch extra thickness helps stop header leaks on warped flanges
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