Ultra-Seal Header Gaskets Fits 1955-1991 Chevrolet 262-400 Gen I Small Block Square Ports, 1.45 Inch x 1.48 Inch Mr Gasket

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 allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications.

For original equipment replacement, high performance street, drag race and oval track use.

• 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
• Can be trimmed if necessary for modified port applications
• For OE replacement, high performance street, drag race and oval track use

Details:

• Collector Gaskets Included: No
• Emission Code: 5
• Gasket Line: Ultra-Seal
• Material: Ultra-seal
• Port Shape: Square
• Port Size: 1.45 x 1.48
• Warranty: Manufacturer's Limited 90 Day Warranty