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Engine Pro Valve spring kit.
A great reliable addition to a variety of LS performance cams.
This Kit has undergone a final shotpeening process to enhance the fatigue life of the springs.
Suits LS1 LS2 LS3 L98 L76 L77 ETC
Max lift 650"
Dual Springs
Made in the USA
Installed load and height 151LBS @ 1.800 inches
Open Load and height 417LBS @1.150 inches
Spring rate 409
Coil bind 1.080 inches