SCE Gaskets BBC Embossed Steel Shim 4.250" X .020" Head Gasket

Steel Shim Head Gasket for 396-427ci Mark 4 Big Block Chevrolet. Bore Opening: 4.250″ Thickness: .020″ Original Chevrolet HP style single layer embossed shim steel head gasket for simplicity & strength. Recommended for use with Copper Coat Spray sealant. Increases compression ratio & withstands high static compression ratio. Package Contents: 1 piece.

Specifications

Weight: 0.5 lbs

Dimensions: 6 x 6 x 3 in

Bore Opening: 4.250"

Gasket Thickness: .020"