Comp Cams Performance Upgrade Valve Springs Automotive Specialty Parts, 3.0000 oz

Comp Cams Performance Upgrade Valve Springs Automotive Specialty Parts, 3.0000 oz Increased control and durability for GM crate circle track applications Performance upgrade over stock springs for higher RPM applications Made from high-tensile strength chrome silicon steel Suitable for a variety of Small Block Chevy and Small Block Ford engines Features a higher life expectancy than tool steel springs State-of-the-art grinding and finishing processes enhance durability Ideal for GM 604 crate engines in stock or modified circle track divisions Outer Diameter: 1.320 inches Inner Diameter: 0.920 inches Seat Load: 103 lbs @ 1.780 inches Open Load: 325 lbs @ 1.160 inches Coil Bind: 1.100 inches Rate: 365 lbs/inch