Racing Valve Spring Kit — 0.480" lift, 340 lb open, 158 lb seat

KIBBLEWHITE Racing Valve Spring Kit — 0.480" lift, 340 lb open, 158 lb seat – 57-83 Sportster

KIBBLEWHITE
0926-0799
20-2210
High-performance valve spring kit designed for specific valvetrain dynamics; progressively wound CrSi wire; complete set for one engine.
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€149.57
€195.54
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Racing Valve Spring Kit engineered for high-performance valvetrain stability and endurance. ⚙️

Designed for its specific application, this kit accounts for critical parameters including cam profiles, harmonics, natural spring frequency, valvetrain mass, required pressure, wire stress, fatigue life, and engine rpm.

Progressively wound springs use Kobe super-clean chromium silicon (CrSi) wire that is heat treated and shot peened to resist fatigue and maintain consistent spring rates.

This is a complete set for one engine and is made in the USA.

: 0926-0799
In Stock

Data sheet

Type
Valve
Units
Kit
Style
Racing
Brand
KIBBLEWHITE
Application
Exhaust, Intake
Spring Seat Pressure
158 lb
Spring Open Pressure
340 lb
Spring Lift
0,480"
0.480"
Collar Material
H.T. Steel
Material
Chromium Silicon Alloy
Harley Family
Sportster

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Sportster Sportster 1957
Harley Davidson Sportster Sportster 1958
Harley Davidson Sportster Sportster 1959
Harley Davidson Sportster Sportster 1958
Harley Davidson Sportster Sportster 1972
Harley Davidson Sportster Sportster 1973
Harley Davidson Sportster Sportster 1974
Harley Davidson Sportster Sportster 1975
Harley Davidson Sportster Sportster 1976
Harley Davidson Sportster Sportster 1977
Harley Davidson Sportster Sportster 1978
Harley Davidson Sportster Sportster 1958
Harley Davidson Sportster Sportster 1959
Harley Davidson Sportster Sportster 1960
Harley Davidson Sportster Sportster 1961
Harley Davidson Sportster Sportster 1962
Harley Davidson Sportster Sportster 1963
Harley Davidson Sportster Sportster 1964
Harley Davidson Sportster Sportster 1965
Harley Davidson Sportster Sportster 1966
Harley Davidson Sportster Sportster 1967
Harley Davidson Sportster Sportster 1968
Harley Davidson Sportster Sportster 1969
Harley Davidson Sportster Sportster 1970
Harley Davidson Sportster Sportster 1971
Harley Davidson Sportster Sportster 1972
Harley Davidson Cafe Racer Sportster 1977
Harley Davidson Cafe Racer Sportster 1978
Harley Davidson Sportster Sportster 1972
Harley Davidson Sportster Sportster 1973
Harley Davidson Sportster Sportster 1974
Harley Davidson Sportster Sportster 1975
Harley Davidson Sportster Sportster 1976
Harley Davidson Sportster Sportster 1977
Harley Davidson Sportster Sportster 1978
Harley Davidson Sportster Sportster 1979
Harley Davidson Sportster Sportster 1980
Harley Davidson Sportster Sportster 1981
Harley Davidson Sportster Sportster 1982
Harley Davidson Sportster Sportster 1983
Harley Davidson Sportster Sportster 1958
Harley Davidson Sportster Sportster 1959
Harley Davidson Sportster Sportster 1960
Harley Davidson Sportster Sportster 1961
Harley Davidson Sportster Sportster 1962
Harley Davidson Sportster Sportster 1963
Harley Davidson Sportster Sportster 1964
Harley Davidson Sportster Sportster 1965
Harley Davidson Sportster Sportster 1966
Harley Davidson Sportster Sportster 1967
Harley Davidson Sportster Sportster 1968
Harley Davidson Sportster Sportster 1969
Harley Davidson Sportster Sportster 1970
Harley Davidson Sportster Sportster 1971
Harley Davidson Sportster Sportster 1972
Harley Davidson Roadster Sportster 1978
Harley Davidson Roadster Sportster 1979
Harley Davidson Roadster Sportster 1980
Harley Davidson Roadster Sportster 1981
Harley Davidson Roadster Sportster 1982
Harley Davidson Roadster Custom Sport Sportster 1983
Harley Davidson Sportster Sportster 1977
Harley Davidson Sportster Sportster 1978
Harley Davidson Sportster Sportster 1983