S&S .550" Lift Double Valve Spring Kit Harley-Davidson FLHF 1953-82
550" lift double valve spring kit for 1948-'84 Harley-Davidson® panhead and shovelhead engines.
- Includes 4 inner springs, 4 outer springs, and 4 aluminum top collars.
- Use with stock-style bottom collar, valve guides, valves with stock 3/8" stem, and stock keepers.
- Compatible with thin-stem valves if thicker keepers that maintain correct valve stem-top collar engagement are used.
- Late single bottom collars are included for use in S&S cylinder heads for shovels and stock late 1981–'85 heads.
Fitment
1953 Harley-Davidson FLHF
1954 Harley-Davidson FLHF
1955 Harley-Davidson FLHF
1956 Harley-Davidson FLHF
1957 Harley-Davidson FLHF
1958 Harley-Davidson FLHF
1959 Harley-Davidson FLHF
1960 Harley-Davidson FLHF
1961 Harley-Davidson FLHF
1962 Harley-Davidson FLHF
1963 Harley-Davidson FLHF
1964 Harley-Davidson FLHF
1965 Harley-Davidson FLHF
1966 Harley-Davidson FLHF
1967 Harley-Davidson FLHF
1968 Harley-Davidson FLHF
1969 Harley-Davidson FLHF
1970 Harley-Davidson FLHF
1971 Harley-Davidson FLHF
1972 Harley-Davidson FLHF
1973 Harley-Davidson FLHF
1974 Harley-Davidson FLHF
1975 Harley-Davidson FLHF
1976 Harley-Davidson FLHF
1977 Harley-Davidson FLHF
1978 Harley-Davidson FLHF
1979 Harley-Davidson FLHF
1980 Harley-Davidson FLHF
1981 Harley-Davidson FLHF
1982 Harley-Davidson FLHF
