Keith Black 390 hypereutectic piston set is .020 oversize and is for 3.438 bore. Pistons have a compression of 9.0:1.
**Note:Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings.
Fits:
FL 1941-1977
Fx 1971-1977
UOM: SET
Country Of Origin: MEXICO
Suggested Items: 11-1370 - 74 Moly Piston Ring Set .020 Oversize
Accessory Items:
16-0622 - Ring-O-Matic Ring Compressor Tool Kit
16-0029 - Connecting Rod Clamping Tool
60-0167 - Cylinder Boring Service
Keith Black 390 hypereutectic piston set is .020 oversize and is for 3.438 bore. Pistons have a compression of 9.0:1.
**Note:Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings.
Fits:
FL 1941-1977
Fx 1971-1977
UOM:
