PAC Racing Springs 1300 Series Drag Race Dual Valve Spring - 673 lb. - 0.971 in Coil Bind - 1.274 in OD (Set of 16) 9950051 Polymer Blend

Polymer Blend

High HP runners make 20+ HP over original LSXr manifold

This system is for all wheelbases

fuel rail kits

PAC Racing Springs 1300 Series Drag Race Dual Valve Spring - 673 lb. - 0.971 in Coil Bind - 1.274 in OD (Set of 16) 9950051 Polymer BlendProduct Description: Valve Spring 1300 Series Drag Race Dual Spring 673 lb in Spring Rate 0. 971 in Coil Bind 1. 274 in OD Set of 16 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 increasing