Cometic MLS cylinder head gasket for Chevrolet Gen-1 small block V8 with Edelbrock RPM heads is specified at .030" thickness and a 4.135" bore. The multi-layer stainless construction includes Viton-coated outer embossed layers and an uncoated shim layer to provide robust combustion sealing and accommodate varied thickness requirements without the need for sealants.
Cometic Chevy Gen1 Small Block V8 .030in MLS Cyl Head Gasket-4.135in Bore-With Edelbrock RPM Heads