PAC Racing Springs 1300 Series Drag Race Dual Valve Spring - 400 lb. - 0.850 in Coil Bind - 1.106 in OD (Set of 16) 26911-12 Excellent for 12:1 compression

Excellent for 12:1 compression

Powerglide High Performance Frictions for Reverse Drums

6 pass cooler design

105-115 Millijoules Per Spark

PAC Racing Springs 1300 Series Drag Race Dual Valve Spring - 400 lb. - 0.850 in Coil Bind - 1.106 in OD (Set of 16) 26911-12 Excellent for 12:1 compressionProduct Description: Valve Spring 1300 Series Drag Race Dual Spring 400 lb in Spring Rate 0. 850 in Coil Bind 1. 106 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