Note: Maximum Recommended Lift = .600in.
* 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
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* coil bind 1.080in.
* 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.