Valve Spring - 1300 Series - Dual Spring - 780 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16. Product Line: 1300 Series Drag Race. Coil Bind Height: 1.13 in. Installed Height: 2.15 in.
Outside Diameter of Outer Spring: 1.5 in. Inside Diameter of Outer Spring: 1.05 in. Inside Diameter of Inner Spring: 0.726 in.Maximum Valve Lift: 0.95 in. Seat Load (LBS): 375 lbs. Seat Load At (in): 2.15 in. Open Load (LBS): 1116 lbs. Open Load At (in): 1.2 in.
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