Note: No machine work requiredShipping Weight (Dimensional): 3.2500Part Type: Valve Spring & Retainer KitsMake: Toyota / LexusVehicle Group: Supra TT MK4 93-98 JZA80, Supra NT MK4 93-98 JZA80, SC300/Soarer 92-00 Z30, IS300 01-05 XE10, GS300/Aristo 91-97 S140, GS300/Aristo 98-05 S160Engine: 1JZ-GTE, 1JZ-GTE VVTi, 2JZ-GE, 2JZ-GE VVTi, 2JZ-GTE, 2JZ-GTE VVTiOpen Pressure: 180lbs @ 23.50mmMax Lift: 11.94mmCoil Bind:18.54mmManufacturer: Brian CrowerValve Spring Type: DualSeat Pressure: 82lbs @ 33.66mmCarb Legal: UnspecifiedRetainer Material: Titanium