S&S Flathead Power Standard Forged 3-5/8 in. Bore Piston for Harley Davidson 1936-84 OHV Big Twin models

S&S Flathead Power Standard Forged 3-5/8 in. Bore Piston for Harley Davidson 1936-84 OHV Big Twin models

This forged 3-5/8in. bore stroker piston replaces several cast and forged big bore piston that S&S previously offered, Applications for this piston include 88in. (4-1/4in. stroke), 93in. (4-1/2in. stroke) and 96in. (4-5/8in. stroke) engines with stock 8-1/2in. diameter flywheels and 98in (4-3/4in. stroke) and 103in. (5in. stroke) engines with 8-1/4in. small diameter flywheels. As with the new stock bore stroker piston, the modern metallurgy and advanced skirt profiles allow a relatively close piston fit for low engine noise and long engine life.

Bike Fitments
1936-1950 Harley Davidson E
1936-1952 Harley Davidson EL
1941-1950 Harley Davidson F
1941-1964 Harley Davidson FL
1953-1964 Harley Davidson FLF
1965-1969 Harley Davidson FLFB
1955-1984 Harley Davidson FLH Electra Glide
1965-1969 Harley Davidson FLHB
1979-1981 Harley Davidson FLHC Electra Glide Classic
1955-1972 Harley Davidson FLHF
1965-1969 Harley Davidson FLHFB
1980-1984 Harley Davidson FLHS Electra Glide Sport
1983 Harley Davidson FLHTC Electra Glide Classic
1984 Harley Davidson FLHX Electra Glide Special
1980-1983 Harley Davidson FLT Tour Glide
1981-1983 Harley Davidson FLTC Tour Glide Classic
1971-1978 Harley Davidson FX Super Glide
1980-1982 Harley Davidson FXB Sturgis
1974-1983 Harley Davidson FXE Super Glide
1979-1981 Harley Davidson FXEF Fat Bob
1982-1983 Harley Davidson FXR Super Glide II
1982-1983 Harley Davidson FXRS Low Glide
1983 Harley Davidson FXRT Sport Glide
1981-1982 Harley Davidson FXS Low Rider
1977-1980 Harley Davidson FXS Low Rider
1983-1984 Harley Davidson FXSB Low Rider - Belt
1980-1984 Harley Davidson FXWG Wide Glide