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Includes a "How to install your headers" sheet that shares all the tips and tricks of how to install the 4.6L headers. New Percy's SEAL-4-GOOD header gaskets and custom header bolts are also included.
Percy's Reusable Flange Gaskets are multi-layered and made of a special "DEAD SOFT" aluminum, which conforms to header flanges for an ultimate seal. Because the SEAL-4-GOOD is a solid metal gasket, it will not blow-out nor will it burn-out.