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S&S Cycle Forged Piston Kit (4-1/2in. Stroke) - .080 Oversize, 7.25:1 Compression - 106-5781

106-5781

Description

All pistons kits come with two pistons, rings, wrist pins, and wrist pin keepers
Compression ratios listed are approximate and are calculated using the correct length cylinders as specified by S&S
Requires the use of connecting rods with a rod length of 7.440in. (standard length OEM #24281-74A connecting rods); use of earlier connecting rods with a rod length of 7.470in. (OEM #24281-41A) will result in a slight increase in the compression ratio of about 1/2 point, and may also result in clearance problems (check all piston to cylinder head clearances carefully when using the early style rods)

Product Series

Application List

YearsMakeModelApplicationNotes
1941 - 1950Harley DavidsonE
1941 - 1952Harley DavidsonEL
1941 - 1950Harley DavidsonF
1941 - 1964Harley DavidsonFL
1953 - 1964Harley DavidsonFLF
1965 - 1969Harley DavidsonFLFB Electra Glide
1958 - 1964Harley DavidsonFLH Duo-Glide
1970 - 1981Harley DavidsonFLH Electra Glide
1955 - 1957Harley DavidsonFLH Hydra-Glide
1965 - 1969Harley DavidsonFLHB Electra Glide
1979 - 1981Harley DavidsonFLHC Electra Glide Classic
1955 - 1972Harley DavidsonFLHF
1965 - 1969Harley DavidsonFLHFB Electra Glide
1980 - 1981Harley DavidsonFLHS Electra Glide Sport
1971 - 1978Harley DavidsonFX Super Glide
1974 - 1981Harley DavidsonFXE Super Glide
1979 - 1981Harley DavidsonFXEF Fat Bob
1977 - 1981Harley DavidsonFXS Low Rider

Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W6.0000” x H10.0000” x L4.0000”
  • Free Ground Shipping (1 - 5 Days)