Keith Black KB263.STD 74 Inch FLH-FX Standard Size Piston Set

Keith Black 390 hypereutectic piston set is standard size and is for a 3.438 inch bore. Pistons have a compression of 9.0:1.

The Keith Black KB263.STD 74 inch FLH-FX Piston Set is a standard-size piston set for specified Harley-Davidson FL applications from 1941 through 1950. This set is identified by SKU 11-2200 and is supplied as a set for replacement or engine rebuilding applications.

Before operating an engine with new pistons and rings, run the engine at moderate speeds for at least 500 miles. Avoid excessive operation in lower gears during the break-in period to help properly break in the new pistons and rings.

For installation guidance, refer to the Keith Black Symmetrical-Asymmetrical Piston Installation Guide. The product data also identifies the 74 inch Moly Piston Ring Set Standard, SKU 11-1368, as a suggested item. Accessory items listed for this piston set include the Ring-O-Matic Ring Compressor Tool Kit, SKU 16-0622; Connecting Rod Clamping Tool, SKU 16-0029; and SKU 60-0167.

Features:

• Brand: Keith Black
• Part Number: KB263.STD
• Product Type: 74 inch FLH-FX piston set
• Size: Standard size
• Fitment: 1941-1950 Harley-Davidson FL applications
• Unit of Measure: Set
• Country of Origin: Mexico

Fitment:
Harley Davidson FL 1941
Harley Davidson FL 1942
Harley Davidson FL 1943
Harley Davidson FL 1944
Harley Davidson FL 1945
Harley Davidson FL 1946
Harley Davidson FL 1947
Harley Davidson FL 1948
Harley Davidson FL 1949
Harley Davidson FL 1950
Harley Davidson FL 1951
Harley Davidson FL 1952
Harley Davidson FL 1953
Harley Davidson FL 1954
Harley Davidson FL 1955
Harley Davidson FL 1956
Harley Davidson FL 1957
Harley Davidson FL 1958
Harley Davidson FL 1959
Harley Davidson FL 1960
Harley Davidson FL 1961
Harley Davidson FL 1962
Harley Davidson FL 1963
Harley Davidson FL 1964
Harley Davidson FL 1965
Harley Davidson FL 1966
Harley Davidson FL 1967
Harley Davidson FL 1968
Harley Davidson FL 1969
Harley Davidson FL 1970
Harley Davidson FL 1971
Harley Davidson FL 1972
Harley Davidson FL 1973
Harley Davidson FL 1974
Harley Davidson FL 1975
Harley Davidson FL 1976
Harley Davidson FL 1977
Harley Davidson Fx 1971
Harley Davidson Fx 1972
Harley Davidson Fx 1973
Harley Davidson Fx 1974
Harley Davidson Fx 1975
Harley Davidson Fx 1976
Harley Davidson Fx 1977