Fits 1963-1976 Oldsmobile 330-455 V8 - 4.230 Inch Gasket Bore

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Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.

Gasket Bore 4.230 inch, Compressed thickness 0.038 inch

• Five layer (graphite core/perforated steel outer layers) composite construction
• Graphite core has excellent thermo-conductivity-transfers heat away from hot spots in head preventing gasket burn-out
• Provides excellent stability, compressibility and high temperature endurance
• Coated with high temperature silicone to ensure sealing of engine fluids
• Will not brinell (indent) aluminum cylinder heads
• For 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
1964-1971	Oldsmobile 442
1965-1976	Oldsmobile 98
1971-1976	Oldsmobile Custom Cruiser
1964-1976	Oldsmobile Cutlass
1975-1976	Oldsmobile Cutlass Salon
1967-1976	Oldsmobile Cutlass Supreme
1976	Oldsmobile Cutlass Tiara
1967-1968	Oldsmobile Delmont 88
1965-1976	Oldsmobile Delta 88
1965-1966	Oldsmobile Dynamic 88
1964-1972	Oldsmobile F85
1964-1966	Oldsmobile Jetstar 88
1965	Oldsmobile Jetstar I
1973-1976	Oldsmobile Omega
1965-1966	Oldsmobile Starfire
1966-1976	Oldsmobile Toronado
1964-1975	Oldsmobile Vista Cruiser