Cometic MLX Head Gasket 4.220" Bore 0.040" Thickness Multi-Layered Stainless Steel - SB Chevy HSLRG11M61 11/16-18 in Left Hand Female

11/16-18 in Left Hand Female Thread

153 lb/in Spring Rate

25 x 25 x 17

and performance

Cometic MLX Head Gasket 4.220" Bore 0.040" Thickness Multi-Layered Stainless Steel - SB Chevy HSLRG11M61 11/16-18 in Left Hand FemaleComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". All Pro Heads. Cometic MLX (Multi Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same materials as our