COMP Cams Calibration Test Spring for #5313 Lead Ballast with a price well below

with a price well below our competitors with the same features

Large Opening

and more fade resistant

of load-leveling capacity (Note: Do not exceed vehicle's GVWR)

Attaches easily with speedfit system

COMP Cams Calibration Test Spring for #5313 Lead Ballast with a price well belowCalibrate your miniature valve spring tester (5314) with this calibrated test spring. The COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development. One thing COMP Cams has never forgotten: Performance is defined by what happens out on the race track. Because no matter what happens on a dyno or in a computer model, if that theoretical performance doesn't translate into real