AV&V AV-VSK600S Valve Spring Kit for Big Twin 84-04/Sportster/Buell 86-03 w/Steel Double Springs & .600" Lift

* Steel Double Spring Kit

* Ultra pure chrome silicon+Nickle spring wire

* Extra processing for fatigue resistance

* 1.375in. for better clearance inside rocker cvr

* Springs feature chamfered tops to match smaller retainers

* Includes springs,retainers & upper & lower collars

* 155lbs@1.875, 175lbs@1.815in.

* coil bind 1.080in.

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.