SCE Vulcan Cut Ring Cylinder Head Gasket - 4.200 in Bore - 0.039 in Compression Thickness - Driver Side - GM LS-Series RS003C0105 Seals bung where O2 sensor

Seals bung where O2 sensor would normally screw in

The adapter bolts into the stock bypass mounting holes

differentials and rear facias

Pontiac: Firebird 71 - 75 7

Smooth Look Upgrade

SCE Vulcan Cut Ring Cylinder Head Gasket - 4.200 in Bore - 0.039 in Compression Thickness - Driver Side - GM LS-Series RS003C0105 Seals bung where O2 sensorProduct Description: Cylinder Head Gasket Vulcan Cut Ring 4. 200 in Bore 0. 039 in Compression Thickness Steel Core Laminate Driver Side GM LS Series Sold Individually SCE Gaskets specializes in gaskets for nearly every part of the engine that requires a gasket. They offer a variety of different materials for a large selection of applications. SCE has raised the bar for cylinder head sealing performance and consistency. Our new Gas Stopper enhancement