GSC Power-Division Single Valve Spring Kit for FA20 WRX-BRZ-FRS FA Shortblocks including special clearance options

including special clearance options

with their lighter weight retainers allow for engines to rev quicker and maintain a more stable valve motion than the traditional cylindrical springs of yesteryear

Torque Capacity Measured at the wheels: 364 Ft/Lbs

boost by rpm

GSC Power-Division Single Valve Spring Kit for FA20 WRX-BRZ-FRS FA Shortblocks including special clearance optionsMax RPM: 8,200 RPM Max boost: 20 psi Cylindrical Spring Coil Bind 0. 782 Install Height 1. 294 1. 298 Seat Pressure 86 25 lbs Open Pressure @ 11. 0mm Lift 179 lbs @ 0. 861 178 lbs @ 0. 865 Maximum Valve Lift 0. 452 Includes: 16 Dual Springs 16 Spring Seat Locators 16 Titanium Retainers