The Kieth Black 390 hypereutectic 3.5 bore piston set has a 8.3:1 compression ratio and is oversize .020. Piston set alloy is cast in a permanent steel molded and includes rings .
**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 1978-1984
FLT 1979-1983
Fx 1978-1984
FXR 1982-1983
UOM: SET
Country Of Origin: MEXICO
Suggested Items: 11-1365 - 80 Shovelhead Piston Ring Set .020
Accessory Items:
16-0622 - Ring-O-Matic Ring Compressor Tool Kit
16-0029 - Connecting Rod Clamping Tool
60-0167 - Cylinder Boring Service
The Kieth Black 390 hypereutectic 3.5 bore piston set has a 8.3:1 compression ratio and is oversize .020. Piston set alloy is cast in a permanent steel molded and includes rings .
**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 1978-1984
FLT
