80" 3-1/2" Bore Cylinder and High Compression Piston Kit for 1979-'84 80"HD® Big Twins - Gloss Black Finish NATIVE CUSTOM BAGGERS 1/4-20 x 1/2

1/4-20 x 1/2

even at a stand-still on display

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HD9813RG-STAGE3

80" 3-1/2" Bore Cylinder and High Compression Piston Kit for 1979-'84 80"HD® Big Twins - Gloss Black Finish NATIVE CUSTOM BAGGERS 1/4-20 x 1/2This kit is intended to replace the cylinders and pistons of a 80" shovelhead engine and increase the compression ratio to 9: 1. Compatible with stock or S&S cylinder heads. Kit includes S&S 3 1 2" bore high tensile cast iron cylinders, 3 1 2" bore forged high compression pistons for 80" (4 1 4" stroke) engines with rings and wristpins, head gaskets, S&S stainless steel head bolts with washers, base nuts, base gaskets.