PERFORMANCE VALVE SPRING KIT FOR EVOLUTION MODELS & TWIN CAM

Weight: 1.17

• 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