AV&V AV-VSK675T Valve Spring Kit for Big Twin 84-04/Sportster/Buell 86-03 w/Steel Double Springs & .675" Lift (Titanium Retainers)

* Specifically designed & processed with extra shot peening & nitrided to resist failure under the most extreme conditions.

* For use with serious high performance cams 0.640-.675in. lift

* Includes springs,retainers & upper & lower collars

* 185lbs @ 1.860, 460lbs @ 1.160in.

* Coil bind 1.080in.

* Maximum lift = .675in.

Tech 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.