Supertech - Dual Valve Springs 85/210

Supertech apply more than 30 years of experience in the development of each and every Supertech racing valve we sell. Combine that experience with state of the art equipment such as ultrasonic tests, x-rays, laser measurement equipment, and applications like computerized Finite Element Analysis (FEA) and it is no wonder why Supertech has some of the best performance products on the market. Dual Valve Springs Seat Pressure: 85 @ 33.5 Open Pressure: 210 @ 10 Max Lift: 15.00mm Coil Bind: 18.50mm Outer Spring OD: 30.20mm Outer Spring ID: 22.20mm Inner Spring OD: 22.20mm Inner Spring ID: 16.80mm Rate: 12.5 ENGINES B16A, B17A, B18C1, B18C5, K20A2, K24A2, K24Z7 DOHC VTEC M42, S42 KA24DE DOHC FA20, FA20F (DIT) FR-S 4U-GSE