PAC Racing Springs PAC-1219 1.307 Valve Springs -Ovate Beehive QTY 16 16 piece Ovate Beehive Valve springs PAC Racing Springs PAC-1219 1.307 Valve Springs -Ovate Beehive QTY 16 Spring Retainers QTY 16 Valve Locks 32 Hat Seals 16 16 piece Ovate Beehive Valve springs PAC Racing 1200 Series valve springs are great as replacement parts--or for pushing above and beyond the performance of OEM engines. Select them when you're upgrading camshafts or doing engine rebuilds. The 1200 series use a premium alloy that outperforms automotive industry standards; and PAC Racing processes the alloy to aerospace shot-peening standards to achieve superior fatigue dependability. This ensures that the springs maintain the load needed to withstand rigors of both street and mild racing applications. Number of Springs Per Valve: Single Outside Diameter of Outer Spring (in): 1.207 in. Coil Bind Height (in): 1.100 in. Damper Spring Included: No Spring Rate (lbs/in): 340 lbs./in. Install Height: 135 @ 1.800 Open Load: 348 @ 1.175 Max Lift: .625 Inside Diameter of Outer Spring (in): 0.885 in. Inside Diameter of Inner Spring (in): 0.650 in. Valve Spring Style: BeehiveValve Springs Coated: No Quantity: 16 Springs