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The JBA premium header gasket pair for Ford 390GT 12-bolt FE rectangle ports delivers a thick, precision flange seal sized to match JBA headers. Intended for installs needing an exact port match, these gaskets are supplied as a pair to replace worn or damaged seals. Constructed from a specially formulated gasket material, they resist exhaust pressures up to 3700 psig and temperatures to 1100°F for dependable high-heat sealing.
JBA Ford 390GT 12 Bolt FE Rectangle Port Header Gasket - Pair
