Competition Cams 4758-2 Checking Springs 735541205156 Brand Peterson Manufacturing Model V421R

Brand Peterson Manufacturing Model V421R

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Competition Cams 4758-2 Checking Springs 735541205156 Brand Peterson Manufacturing Model V421RBrand Comp Cams Model 4758 2 Low tension checking springs can be installed by hand in place of valve springs Simplify measuring piston to valve clearance, rocker ratio, cam degreeing, etc Set of two springs is enough for one cylinder COMP Cams Checking Springs are low tension and can be installed by hand in place of the valve springs. They simplify measuring piston to valve clearance and rocker ratio. They are sold in sets of two.