Keith Black KB297.010 80-Inch FLH-FX Piston Set .010 Oversize

The Keith Black 390 hypereutectic 3.5 inch bore piston set has a 8.3:1 compression ratio and is oversize .010. Piston set alloy is cast in a permanent steel mold and includes rings.

The Keith Black KB297.010 80-inch FLH-FX Piston Set is designed as a .010 oversize piston set for the applications identified in the product data. It fits 1978–1984 Harley-Davidson FL models and 1978–1980 Harley-Davidson FX models.

For proper break-in, run the engine at moderate speeds for at least 500 miles while avoiding excessive operation in lower gears. Follow the Keith Black Symmetrical-Asymmetrical Piston Installation Guide for installation information. The product is supplied as a set and has a country of origin listed as Mexico.

For related service work, the suggested 80-inch Shovelhead piston ring set .010 is product 11-1364. Listed accessory items include the Ring-O-Matic Ring Compressor Tool Kit, Connecting Rod Clamping Tool, and accessory 60-0167.

Brand: Keith Black. Part Number: KB297.010.

Features:

• Application: 80-inch FLH-FX piston set
• Oversize: .010 oversize
• Fitment: 1978–1984 Harley-Davidson FL models and 1978–1980 Harley-Davidson FX models
• Unit of Measure: Set
• Break-In Guidance: Run the engine at moderate speeds for at least 500 miles and avoid excessive running in lower gears
• Country of Origin: Mexico

Fitment:
Harley Davidson FL 1978
Harley Davidson FL 1979
Harley Davidson FL 1980
Harley Davidson FL 1981
Harley Davidson FL 1982
Harley Davidson FL 1983
Harley Davidson FL 1984
Harley Davidson FLT 1979
Harley Davidson FLT 1980
Harley Davidson FLT 1981
Harley Davidson FLT 1982
Harley Davidson FLT 1983
Harley Davidson Fx 1978
Harley Davidson Fx 1979
Harley Davidson Fx 1980
Harley Davidson Fx 1981
Harley Davidson Fx 1982
Harley Davidson Fx 1983
Harley Davidson Fx 1984
Harley Davidson FXR 1982
Harley Davidson FXR 1983