PAC Racing Springs 1300 Series Drag Race Dual Valve Spring - 400 lb. - 0.850 in Coil Bind - 1.106 in OD (Set of 16) H777C08XXL 1977-1977 GMC K25 Suburban

1977-1977 GMC K25 Suburban

1964 Ford Sprint CID 289 CC 4727 4

025 in / 0

***Will not work on 6 Cylinder Odd-Fire applications***

and 1966-77 Ford Bronco

PAC Racing Springs 1300 Series Drag Race Dual Valve Spring - 400 lb. - 0.850 in Coil Bind - 1.106 in OD (Set of 16) H777C08XXL 1977-1977 GMC K25 SuburbanProduct 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