
Mid-USA - Performance Valve Spring Kit for Evolution Models & Twin Cam
Item ships direct from supplier when available. Some items will be in stock and ship immediately, and others will have a lead time. Please contact us for more information. You will receive a lead time confirmation upon placing an order.
Fits These Vehicles
Fits These Vehicles
Shipping & Returns
Shipping & Returns
Description
- Use with cams up to .650" lift
- Does not require cylinder head machining for installation
- Includes titanium top collars
- Installed height of 1.800" creates seat pressure of 180 pounds
- At open height of 1.150" creates seat pressure of 400 pounds
- Includes valve keys
Manley
Fits Big Twin Evolution 1984/1999, Twin Cam 1999/2004 & Sportster 1986/2003
By: MANLEY PERFORMANCE











