Supertech Dual Valve Spring and Titanium Retainer Kit for 2005-2010 Scion tC 2AZFE 2.4L Engines

Dual Valve Spring and Titanium Retainer Kit for 2005-2010 Scion tC 2AZFE 2.4L EnginesSet of 16 Dual Valve Springs, 16 Titanium Retainers & SeatsSPRK-TS1015/TCType: Dual SpringOuter Spring: OD 27.50mm - ID 20.00mmInner Spring: OD 20.00mm - ID 15.20mmPress.Seat: 81lbs @ 34mmMax Lift: 12.50mmCoil Bind: 20.70mmRate: 12.10mmRetainer: RET-TS5.5/TCSpring: SPR-TS1015/TCSeat: SEAT-TS/TCOur valve springs are computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue. We also utilize computer software that allows us to ensure that the harmonics are under control. All Supertech valve springs are made with premium super clean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms. Using high quality steel alloy also provides the added benefit of better structural memory for all of our springs, giving your performance racing engine a serious competitive advantage. Supertech retainers are manufactur