Motorshop 74in OHV Piston Set.030 Oversize for Harley FL

The Motorshop 74in OHV Piston Set delivers a faithful restoration with a replica-style 3-7/16 inch bore and an 8.5:1 compression ratio, oversize.030, built to breathe life into classic Harley FL engines.

• Replica-style pistons with a 3-7/16 inch bore
• Oversize.030 with 8.5:1 compression ratio
• Includes Hastings rings, 2 wrist pins, and 4 circlips
• Pistons feature a steel expansion control strut cast into each piston
• Crafted in Taiwan
• UOM: KIT; Country of Origin: TAIWAN

Designed to restore or upgrade Harley-Davidson FL models from 1941 to 1950, this kit helps you maintain authentic engine configurations for vintage rebuilds. The package includes pistons, rings, and wrist pin locks, providing a comprehensive solution for your restoration project. Detailed instructions are available at this link to guide you through the process.

• Compatibility: Harley Davidson FL 1941–1950; broad fitment list covers FL models through 1977 and FX models through 1977
• Use and care: follow proper installation and break-in procedures for optimal seating
• Break-in guidance: run the engine at moderate speeds for at least 500 miles and avoid excessive low-gear operation

This kit aligns with original engine configurations and helps preserve the authenticity of your Harley-Davidson FL motorcycle during restoration or performance upgrades. For best results, refer to the included installation notes to ensure correct assembly and seating of rings and pistons.

Replica style 3-7/16 inch bore piston set has a 8.5:1 compression ratio and is oversize.030. Piston set includes Hasting rings 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast.

The Motorshop Replica 74 Inch Overhead Valve Piston Set is designed to restore or upgrade Harley Davidson FL models from 1941 to 1950. Crafted in Taiwan, this piston kit ensures quality and durability for vintage engine rebuilds. The set includes pistons, rings, and wrist pin locks, providing a comprehensive solution for your restoration project. Proper installation and break-in procedures, such as running the engine at moderate speeds for at least 500 miles and avoiding excessive low-gear operation, are critical for optimal piston and ring seating. Detailed instructions are available at this link to guide you through the process. This kit is compatible with original engine configurations and helps maintain the authenticity of your Harley Davidson FL motorcycle.

Features:

• UOM: KIT

• Country of Origin: TAIWAN

• Suggested Items: 11-0179 - 74 inch FLH Piston Ring Set.030 Oversize, 12-0929 - Piston Wrist Pin Lock

• Accessory Items: 16-0622 - Ring-O-Matic Ring Compressor Tool Kit, 16-0029 - Connecting Rod Clamping Tool, 60-0167

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