Brand New Set of 16 Pro Comp High Performance Dual Valve Springs for Small Block Chevrolet Engines (Part #3005). These Small Block Chevrolet high performance dual valve springs are manufactured from chrome silicone to tolerate more lift, build compression, and last longer. Specs: Spring Outside Diameter: 1.450" Maximum Lift: .675" 210 Lb. Seat Pressure: At 1.800" Installed Height 225 Lb. Seat Pressure: At 1.750" Installed Height 240 Lb. Seat Pressure: At 1.700" Installed Height 375 Lb. Seat Pressure: At 1.300" Installed Height 390 Lb. Seat Pressure: At 1.250" Installed Height 410 Lb. Seat Pressure: At 1.200" Installed Height 425 Lb. Seat Pressure: At 1.150" Installed Height 440 Lb. Seat Pressure: At 1.100" Installed Height Coil Bind: At 0.970" Installed Height Sold In Sets of: 16
