Motorshop Replica 74 Inch Overhead Valve Piston Set.040 Oversize For Harley FL
Replica-style 3-7/16 inch bore piston set with an 8.5:1 compression ratio and.040 oversize for precise fitting and improved engine performance. This kit is designed specifically for Harley Davidson FL models from 1941 to 1950.
The piston set includes a piston ring set, two wrist pins, and four circlips. The pistons feature a steel expansion control strut cast for durability under load. The kit includes pistons, rings, wrist pins, and locks for a complete assembly.
Made in Taiwan, this Motorshop replica is built for vintage motorcycle restorations and rebuilds, offering compatibility with a range of accessory items to customize installation and maintenance. Proper break-in procedures—running at moderate speeds for at least 500 miles and avoiding excessive low-gear operation—help ensure proper piston and ring seating and long-term durability.
In addition to core components, compatible accessories such as the Ring-O-Matic Ring Compressor Tool Kit and Connecting Rod Clamping Tool are suggested to facilitate installation and alignment during assembly.
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
Replica style 3-7/16 inch bore piston set has a 8.5:1 compression ratio and is.040 oversize. Piston set includes piston ring set 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast.
The Motorshop Replica 74 inch Overhead Valve Piston Set with a 3-7/16 inch bore is designed specifically for Harley Davidson FL models from 1941 to 1950. Crafted in Taiwan, this piston kit ensures quality construction and reliable performance for vintage motorcycle restorations and rebuilds. The set includes pistons, rings, wrist pins, and locks, providing all essential components for a complete overhaul. Proper break-in procedures, such as running the engine at moderate speeds for at least 500 miles and avoiding excessive low gear operation, are recommended to ensure optimal piston and ring seating and long-term durability.
Each piston features a.040 oversize, which allows for precise fitting and improved engine performance. This kit is compatible with a range of suggested accessory items, including piston ring sets, wrist pin locks, and piston and lock kits, allowing for customizable assembly and maintenance. The included accessories, such as the Ring-O-Matic Ring Compressor Tool Kit and Connecting Rod Clamping Tool, facilitate installation and ensure proper alignment and compression during assembly. Whether restoring a vintage Harley or performing a rebuild, this piston set provides a dependable solution that combines craftsmanship, compatibility, and ease of installation, making it an ideal choice for enthusiasts and professional mechanics alike.
Features:
- Designed for Harley Davidson FL models from 1941 to 1950
- Bore size: 3-7/16 inch with.040 oversize for precise fitting
- Includes pistons, rings, wrist pins, and locks for complete assembly
- Made in Taiwan with quality craftsmanship
- Recommended break-in procedure: run at moderate speeds for 500 miles, avoid excessive low gear operation
- Compatible with suggested accessory items for customization and maintenance
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
