
Cometic MLS cylinder head gasket for Chevrolet Gen-1 small block V8 with Edelbrock RPM heads is specified at .040" compressed thickness and a 4.135" bore. The multi-layer stainless steel construction uses Viton-coated embossed outer layers and an uncoated shim layer to accommodate thickness needs, improve sealing under load, and resist the stresses of high-output engine duty without sealants.
Cometic Chevy Gen1 Small Block V8 .040in MLS Cyl Head Gasket-4.135in Bore-With Edelbrock RPM Heads