Description
Fits 1955-1991 Chevrolet 262-400 Gen I Small Block. Square Ports, 1.45 Inch x 1.48 Inch
- Manufactured from high-temperature steel core/graphite faced exhaust material
- Expanded steel core provides stability and maximum torque retention to eliminate gasket failure
- Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head
- Conforms to and seals minor surface irregularities