Valve Spring, 1300 Series Drag Race, 740 lb/in Spring Rate, 0.973 in Coil Bind, 1.300 in OD, Set of 16. PAC Racing Springs produces premium-quality valve springs and related valvetrain components for many different automotive and racing applications. Their lines of valve springs, retainers, locks, seats, shims, and specialty tools are designed to provide excellent performance and reliability, and are available as individual components or as complete kits. 1.300 DRAG RACE DUAL VALVE SPRING SET 16PK.
3.75 lbs 1.70 kg. 15 in 38.10 cm. 4 in 10.16 cm. 3.5 in 8.89 cm.Outside Diameter of Outer Spring. Outside Diameter of Inner Spring. Inside Diameter of Inner Spring.