JBA premium header gasket for Chrysler 5.7–6.4L Gen III Hemi D-port applications. Sold as a pair, these gaskets create a reliable seal between header flange and head to reduce leaks and support correct exhaust flow when installing JBA headers. Extra-thick, formulated gasket material ensures an exact port match with JBA headers and is rated for exhaust pressures up to 3700 psig and temperatures to 1100°F.
JBA Chrysler 5.7-6.4L Gen III Hemi D-Port Header Gasket - Pair