PAC Racing Springs 1200 Series Drag Race Dual Valve Spring - 644 lb. - 1.150 in Coil Bind - 1.550 in OD IA0-1864-A01-171-58 1 NON SILICONE BASE

1 NON SILICONE BASE

Extra volume to prevent rocking or backing up when transbrake is applied

Low height to fit under a stock or mildly modified hood

100% Asbestos-free formulas

Powerglide Front Pump Drive for Chevrolet Engines

PAC Racing Springs 1200 Series Drag Race Dual Valve Spring - 644 lb. - 1.150 in Coil Bind - 1.550 in OD IA0-1864-A01-171-58 1 NON SILICONE BASEProduct Description: Valve Spring 1200 Series Drag Race Dual Spring 644 lb in Spring Rate 1. 150 in Coil Bind 1. 550 in OD Sold Individually Traditional Springs are made from the same size (Diameter) wire throughout the helix of the spring. PAC Racing Springs has partnered with technology leaders in order to provide this advanced new tapered wire product. Tapered wire allows for a true progressive and dual rate without reducing spring travel and