Valve Spring Kit. Fits Big Twin 1984-2004, Sportster & Buell 1986-2003. Beehive Springs with .650in. Lift.

Product Details







Note: Maximum Recommended Lift = .650?* Beehive steel valve spring kit* Ultra pure chrome silicon+Nickle spring wire* Extra processing for fatigue resistance* Resist pressure loss & fatigue associated with extremely aggressive cams in high compression engines* Reduce vibration & harmonics* Includes springs,retainers & upper & lower collars* 185lbs@1.860, 370lbs@1.250?* coil bind 1.150?* Small end ID = .740?, OD= 1.185?* Large end ID = 1.055?, OD = 1.500?* CNC machined keepersTech Tips:-* Rocker box clearance must be checked* Spring travel must be checked * Valve timing must be accurate** Over revving will lead to pre-mature failure of Valve Springs & collars.
MFR PART No: AV-VSK6500

ROLLIES PART No: AV-VSK6500