Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block. Round Ports, 1.92 Inch logo Bolt Circle 2 139

Bolt Circle 2 139

2019-2022 Ram 3500 Lone Star Diesel Crew Cab Pickup

each boot is designed to hold up to the elements and resist fading for a long life of good looks and protection

Balanced to OE specifications

For DRW models

Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block. Round Ports, 1.92 Inch logo Bolt Circle 2 139Manufactured 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 allows header or manifold flange to stay sealed if flange loses clamp load. Can be