Part# ET220 104# .490” Lift ECOTEC Racing, Drop In, Single Valve Springs: 191# at Max lift (.490”), Drop In Racing Valve Springs, using stock retainers and valve seals without any machining required. These springs are compatible with all Ecotec 2.0, 2.2, 2.4 liter Ecotec engines.

Specs: Part Type: Ecotec Drop-In Racing Valve Springs. Compatible with all Ecotec 2.0, 2.2, 2.4 liter Ecotec engines Type: Single Damper Included: No Outer Spring Out Side Diameter (O.D.): 1.010" Outer Spring In Side Diameter (I.D.): .740" Seat Pressure: 104 @ 1.320” Open Pressure: 191 @ .820" Spring Rate/Inch: 185 Maximum Suggested Lift: .490" Coil Bind: .830" Electro Polished: No Nitrided: No Suggested Steel Retainers: VSRET252-B Manufacturer: Racing Engine Technologies Manufacturer's Part Number: ET220 Packaged Weight: 3.0 lbs. Warranty: Race Application, No warranty expressed or implied Quantity: Sold in Sets of 16