MR GASKET 5971-Ultra-Seal Header Collector Gaskets 3-3 hole- Exhaust Gasket bellhousings 1 L6 1966 Pontiac Catalina

1 L6 1966 Pontiac Catalina 2+2 421/6

7L/V8 1977 - 1979 Buick Regal 5L/V8 1978 Buick Regal Sport 3

06/8 V 1977 Oldsmobile Omega Deluxe 4

4L V8 1968 Chevrolet Corvette   327/5

5L engine is manufactured using durable 409 stainless steel throughout and features a 2

MR GASKET 5971-Ultra-Seal Header Collector Gaskets 3-3 hole- Exhaust Gasket bellhousings 1 L6 1966 Pontiac CatalinaOverview: Manufactured from high temperature steel core graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away. Features: Application: Year Make Model Submodel Engine Size Universal Specs: # Bolt Holes 3 Bolt Hole Size 3 8" Bolt Pattern 3 7 8" Brand Mr. Gasket Collector Diameter 3.