Valve Spring Kit

Valve Spring Kit - 0.550" Lift - Panhead | Shovelhead Engines '48-'84

• Must allow additional rocker clearance for '48-'65 Panheads
• Use with stock-style bottom collar, valve guides, valve 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 '81-'85 heads
• Made in the USA
• To be used with cams with up to 0.550" lift.