Mr. Gasket Ultra-Seal Head Gasket - 5716G fuses 4 V8 1968 - 1973

4 V8 1968 - 1973 Chevrolet C20 Pickup 307/5 V8 1970 - 1972 Chevrolet C20 Pickup 402/6

2 V6 1978 - 1979 GMC Caballero 200/3

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-171

4 V8 1971 - 1973 Mercury Marquis 400/6

Without ZR2/High-Rider Trim Package (Without RPO Code ZR2)

Mr. Gasket Ultra-Seal Head Gasket - 5716G fuses 4 V8 1968 - 1973Overview: 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,