Ultra-Seal Header Gaskets Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block Round Ports, 2.40 Inch Mr Gasket Air & Fuel - Fuel Delivery - Fuel Injection Electronic Control Unit Bore Diameter: 2

Bore Diameter: 2

Precision engineered for a perfect fit and keeps dirt and debris away from your vehicle

37 Inch Tire

Ease of Installation

Ultra-Seal Header Gaskets Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block Round Ports, 2.40 Inch Mr Gasket Air & Fuel - Fuel Delivery - Fuel Injection Electronic Control Unit Bore Diameter: 2Manufactured 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