Shim Steel Head Gasket for Small Block Chevrolet. Bore Opening: 3.960″; Gasket Thickness: .015″; Material: Embossed Shim Steel. Suitable replacement for obsolete GM part number 3995633. These gaskets are special-run small bore, thin body head gasket for use in 283-305ci engines in Stock Eliminator competition. Previously hard to find, SCE Gaskets has re-introduced steel shim head gaskets for domestic performance engines. These super-thin head gaskets are strong enough for high compression use and they increase compression ratio.; Package Contents: 1 Piece.
Made in USA