Cometic Chevy Small Block 4.100 inch Bore .075 inch MLS-5 Head Gasket (18 or 23 Deg. Heads)

When you're rebuilding the top end of your Chevy Small Block V8, getting the cylinder head gaskets right is crucial for sealing combustion pressure. This Cometic MLS-5 head gasket is built for that job, featuring a 4.100 inch bore and a compressed thickness of 0.075 inches, designed to work with 18 or 23-degree cylinder heads. It fits a wide range of vehicles, including many Chevrolet and GMC trucks and cars from the early to mid-80s, as well as models like the Avanti II and Excalibur Phaeton.

Cometic's Multi-Layer Steel (MLS) construction uses multiple stainless steel layers for increased strength and rebound resistance, helping to prevent corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that handles tough sealing environments and various surface finishes without needing additional sealants. This makes them a solid choice for both aluminum-to-aluminum and aluminum-to-cast iron block combinations, as they can manage the shearing forces that arise from different metal types.