Mr. Gasket Copperseal Header Gasket - 1.630 Round Port - Copper - Small Block Chevy - Pair Headset Oval Track Catalog Base gasket

Base gasket

1995-1998 GMC C2500 Suburban

Offset cylinder head dowels reposition the cylinder heads upwards on the block (toward the lifter valley)

Valve Lock

black side panels

Mr. Gasket Copperseal Header Gasket - 1.630 Round Port - Copper - Small Block Chevy - Pair Headset Oval Track Catalog Base gasketCopperseal Exhaust Gaskets 262 400 1955 91 Round Port For Headers 1. 63 DIA. 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 from the cylinder head. Conforms to and seals minor surface irregularities, high recovery material