3481144/3481144
Manley Valve Spring .490 Lift Top Collars Harley Ironhead Sportster USA Made XL
- Brand Manley
- Model 3481144
- Availability In Stock
MANLEY VALVE SPRING KIT
USA MADE!
FITS:
1957-1985 HARLEY IRONHEAD SPORTSTER
Manley .490 valve spring kit features OD springs with steel top collars.
Interference fit to reduce harmonics and control spring surge.
Springs have 20% more pressure than stock.
No machining required for installation.
Use with stock lift cams to .490.
Uses stock lower collars.
Interference fit to reduce harmonics and control spring surge.
Springs have 20% more pressure than stock.
No machining required for installation.
Use with stock lift cams to .490.
Uses stock lower collars.