Mr. Gasket Ultra Seal Exhaust Manifold Gaskets - SB Chevy - Round Port - Exhaust Port Width: 1.63" , Exhaust Port Height: 1.63" , Center Port to Gasket Top: .80" BR30004 Low tension oil rings make

Low tension oil rings make significant increases in horsepower and are for racing only

800 in Length

Buick: Skylark 66 - 66 6

When the distributor is properly seated

MPM V6 262CI 4

Mr. Gasket Ultra Seal Exhaust Manifold Gaskets - SB Chevy - Round Port - Exhaust Port Width: 1.63" , Exhaust Port Height: 1.63" , Center Port to Gasket Top: .80" BR30004 Low tension oil rings makeUltra Seal premium exhaust gaskets have the ability to conform to warped flanges for a tight seal. They have superior tensile strength to resist cracking. The graphite facing withstands heat, and allows easy removal. Fits 1955 99 V8 Small Block Chevy, with Round Ports and aftermarket headers. Vehicle Applications: 1987 1987 Chevrolet V20 1977 1977 Oldsmobile Delta 88 1975 1978 GMC C35 1988 1995 Chevrolet C3500 1987 1988 Chevrolet V30 1978 1980