Doug's Headers HG9401 Header Flange Gasket, Buick 400-455

Doug's premium header flange gaskets are made extra thick from specially formulated gasket material. Out gaskets are rated up to 1100 degrees F and handle exhaust pressures up to 3700 psig (255 bar). Each gasket is designed for exact port match to out Doug's headers. Sold in pairs.

• Extra thick, specially formulated material
• Rated up to 1100 degrees F
• Can handle exhaust pressures up to 3700 psig (255 bar)
• Available in a wide variety of port shapes and the most popular engine families

• Doug's Headers HG9401 Buick 400-455 1 7/8" SAP (same as port) Header Flange Gaskets

• Doug's Headers HG9401 Buick 400-455 1 7/8" SAP (same as port) Header Flange Gaskets