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The JBA premium header gasket pair for Chevrolet 5.3–6.2L Gen 5 LT oval-port engines is an extra-thick, application-specific gasket made for precise oval-port alignment with JBA headers. Built to handle exhaust pressures up to 3700 psig and temperatures up to 1100°F, it offers reliable sealing under high-heat conditions. The gasket is intended to reduce exhaust leaks and ensure consistent port matching during header installation.
JBA Chevrolet 5.3-6.2L Gen 5 LT Oval Port Header Gasket - Pair
