Fits 1963-1979 Pontiac 326-455 V8. Oval Ports, 1.46 Inch x 1.93 Inch

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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

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Information:

Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations

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Application Summary:

Year	Make/Model
1965-1976	Pontiac Bonneville
1965-1976	Pontiac Catalina
1967-1970	Pontiac Executive
1967-1976	Pontiac Firebird
1973-1975	Pontiac Grand Am
1975-1976	Pontiac Grand LeMans
1965-1976	Pontiac Grand Prix
1971-1976	Pontiac Grand Safari
1971-1975	Pontiac Grandville
1965-1966	Pontiac GTO
1968-1973	Pontiac GTO
1965-1976	Pontiac LeMans
1968	Pontiac Parisienne
1965-1966	Pontiac Star Chief
1965-1970	Pontiac Tempest
1972-1976	Pontiac Ventura