Product Description
Spring, Valve, Dual, set (Fits 240, 270, 340, & 390s). Approx 65 lbs at 1.125 installed height, 60lbs at 1.2, with 140 lb open pressure (.375 lift). Requires aftermarket retainers and keepers.
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Dual valve springs Big Block predator 420 cc
100% quality parts that I can Always trust to put into my Builds thank you ARC Racing !