Cometic Toyota 4AG-GE 83mm Bore .070 inch MLS Head Gasket

You're getting a Cometic Multi-Layer Steel (MLS) head gasket designed specifically for your 1985-1991 Toyota Corolla with the 4A-GE engine. This gasket is built with multiple layers of stainless steel, giving it increased strength and the ability to rebound, which helps resist corrosion. It's coated on the outer layers with Viton, a heat-resistant rubber material that can handle tough sealing jobs and various surface finishes without needing extra sealants.

The center layer is stainless steel and can be varied in thickness to meet different needs; in this case, it's set to a compressed operating thickness of 0.070 inches, with an 83mm bore to match your engine. This type of construction is great for sealing between aluminum heads and either aluminum or cast iron blocks, as it can handle the shearing forces that can occur between different metals. It's a well-built option for high-output engines.