DescriptionExhaust Gasket Set; D Port Shape; Port Dimensions W-1.5 in. x H-1.94 in.;Mr. Gasket has three types of exhaust gaskets--standard, Ultra Seal, and Copperseal. Use the standard for a stock...
Mr Gasket 63-79 Pontiac w/326-455 V8 & D-Port Heads, Aluminum Layered Header Gaskets - (MRG-7418G)