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Round Port Shape; 4.84 in. Bore Center; 2.40 in. Port Diameter
Ultra Seal Exhaust Gasket Set; Round Port Shape; 4.84 in. Bore Center; 2.40 in. Port Diameter;
Ultra Seal Exhaust Gasket Set
Product Attributes:
- Gasket Line: Ultra-seal
- WARNING CA Proposition 65: No
- Port Shape: Round
- Collector Gaskets Included: No
- Engine Make/Size: Chevrolet Big Block Mark Iv
- Thickness: 0.062 In.
- Port Size: 2.400 In.
Features:
- Graphite-Impregnated Facing
- Steel Expanded Metal Core
- Superior Tensile Strength
- Resists Cracking
- Withstands Intense Heat
- Resists Deteriorating
- Anti-Stick Properties
- Easy Removal For Disassembly
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.

This Part Fits the Following OEM/Substitute Numbers:

1490

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1973 - Chevrolet G30 Van	V	-	8 Cyl 7.4L	454

Round Port Shape; 4.84 in. Bore Center; 2.40 in. Port Diameter
Ultra Seal Exhaust Gasket Set; Round Port Shape; 4.84 in. Bore Center; 2.40 in. Port Diameter;
Ultra Seal Exhaust Gasket Set
Product Attributes:
- Gasket Line: Ultra-seal
- WARNING CA Proposition 65: No
- Port Shape: Round
- Collector Gaskets Included: No
- Engine Make/Size: Chevrolet Big Block Mark Iv
- Thickness: 0.062 In.
- Port Size: 2.400 In.
Features:
- Graphite-Impregnated Facing
- Steel Expanded Metal Core
- Superior Tensile Strength
- Resists Cracking
- Withstands Intense Heat
- Resists Deteriorating
- Anti-Stick Properties
- Easy Removal For Disassembly
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.