.550" lift double valve spring kit for 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 1981-1984 heads.
Made in the USA
Product Note:
Specification
Details
Country of Origin
USA
Engine Type
Panhead / Shovelhead
Valve Lift
.550 in.
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
