Brand:PCEPart Number:PCE272.1020Part Type:Valve SpringsNumber of Springs Per Valve:Single Outside Diameter of Outer Spring (in):1.450 in.Coil Bind Height (in):1.060 in.Damper Spring Included:NoSpring Rate (lbs/in):135lbs @ 1.900 in.Inside Diameter of Outer Spring (in):1.080 in.Inside Diameter of Inner Spring (in):.834 in.Valve Spring Style:StandardCoated:NoQuantity:Sold as a set of 16Notes:Single inner spring used to increase spring pressure of PCE272.1007 and PCE272.1013