Products

Keith Black piston set .010 oversize and is for a 3.498 inch bore. Piston set has a compression ratio of 9.6:1 and includes rings. The Keith Black ...

Keith Black piston set is .020 oversize and is for 3.498 inch bore. Piston set has a compression of 9.6:1 and includes rings. The Keith Black 390 h...

Keith Black piston set is .030 oversize and is for a 3.498 inch bore. Piston set has compression ratio of 9.6:1 and includes rings. The Keith Black...

Keith Black piston set is standard size and is for a 3.498 inch bore. Piston set has a compression of 9.6:1 and includes rings. The Keith Black 390...

Assembled and tested for oil pressure. Flatside shovelhead long block is a 80 cubic inch displacement featuring Sifton oil pump breather assembly ...

Keith Black dome piston set is .005 oversize with a 7.2:1 compression ratio for 1980-1984 80 inch Shovelhead models. The Keith Black 390 hypereutec...

Keith Black dome piston set is .010 oversize with a 7.2:1 compression ratio for 1980-1984 80 inch Shovelhead models. The Keith Black 390 hypereutec...

Keith Black dome piston set is .020 oversize with a 7.2:1 compression ratio for 1980-1984 80 inch Shovelhead models. The Keith Black 390 hypereutec...

Keith Black piston set is .040 oversize and is for a 3.498 inch bore. Piston set has a compression of 8.3:1 and includes rings. The Keith Black 39...

The Keith Black 390 hypereutectic 3.5 inch bore piston set has a 8.3:1 compression ratio and is standard size. Piston set alloy is cast in a perman...

Replacement Wiseco piston ring are for a 3-1/2 inch bore and are .005 oversize. They are packaged per piston. FITMENT1984 / 1998 FXST 80 Evolution...

Cast piston ring set is for a 3-1/2 inch bore and is .010 oversize. Set is for 2 pistons with one piece oil ring. FITMENT1978 / 1984 FL 1978 / 19...

Cast piston ring set is for a 3-1/2 inch bore and is .020 oversize. Set is for 2 pistons with one piece oil ring. FITMENT1978 / 1984 FL 1978 / 19...

Cast piston ring set is for a 3-1/2 inch bore and is .030 oversize. Set is for 2 pistons with one piece oil ring. FITMENT1978 / 1984 FL 1978 / 19...

Cast piston ring set is for a 3-1/2 inch bore and is .040 oversize. Set is for 2 pistons with one piece oil ring. FITMENT1978 / 1984 FL 1978 / 19...

Cast piston ring set is for a 3-1/2 inch bore and is standard size. Set is for 2 pistons with one piece oil ring. FITMENT1978 / 1984 FL 1978 / 19...

Wiseco piston set is .010 oversize and is for a 3-1/2 inch bore. Piston set has a compression of 9.5:1 and includes rings. **Note:Run engine at mod...

Wiseco piston set is .020 oversize and is for a 3-1/2 inch bore. Piston set has a compression of 9.5:1 and includes rings. **Note:Run engine at mod...

Wiseco piston set is .030 oversize and is for a 3-1/2 inch bore. Piston set has a compression of 9.5:1 and includes rings. **Note:Run engine at mod...

Wiseco piston set is .040 oversize and is for a 3-1/2 inch bore. Piston set has a compression of 7:1 and includes rings. **Note:Run engine at moder...

Wiseco piston set is standard 3-1/2 inch bore. Piston set has a compression of 9.5:1 and includes rings. **Note:Run engine at moderate speeds for a...

S&S cast iron cylinders for Shovelhead models are stock length and include base nuts head bolts and head and base gaskets. Cylinders measure ...

Cast piston ring set is for a 3-7/16 inch bore and is .060 oversize. Features compression rings with a size of 1/16 inch and oil rings with a size ...