AMC V8 304 - 401 Remflex Exhaust Gaskets 1970 - 1993 # REM1001AMC V8 304 401 Remflex Exhaust Gaskets 1970 1993 # REM1001 Exhaust Header Gaskets, Graphite, Dog Leg Port Style, AMC, 304, 360, 390, 401, Pair Port Style: Dog leg Gasket Material: Graphite Port Height (in.): 1. 300 in. Port Width (in.): 1. 800 in. Quantity: Sold as a pair. Remflex Exhaust Header Gasket Sets Remflex exhaust header gasket sets feature 100 percent flexible graphite construction that's effective up to 3,000 degrees F, far exceeding any