PAC Racing Springs 1200 Series Drag Race Dual Valve Spring - 644 lb. - 1.150 in Coil Bind - 1.550 in OD IA0-1864-A01-171-58 100% Asbestos-free formulas

100% Asbestos-free formulas

This adapter is designed to allow your stock car

HP estimates are based on gasoline

Powerglide Front Pump Drive for Chevrolet Engines

Chevrolet: Blazer 69 - 74 5

PAC Racing Springs 1200 Series Drag Race Dual Valve Spring - 644 lb. - 1.150 in Coil Bind - 1.550 in OD IA0-1864-A01-171-58 100% Asbestos-free formulasProduct 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