Performance Valve Spring Kit For Evolution Models & Twin Cam

Description

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