PAC Racing Springs RPM Series Beehive Valve Spring - 409 lb/in Spring Rate - 1.070 in Coil Bind - 1.034 in / 1.290 in OD (Set of 16) PTN6-604BL comes with Y-pipe to connect

comes with Y-pipe to connect to your factory exhaust

428 lb/in Spring Rate

Billet Specialties heat and AC bulkheads are engineered to work with 5/8 heater hose and one -6 and one -10 A/C line

Once before manufacture and again after coiling

1983-1986 GMC K1500 Suburban

PAC Racing Springs RPM Series Beehive Valve Spring - 409 lb/in Spring Rate - 1.070 in Coil Bind - 1.034 in / 1.290 in OD (Set of 16) PTN6-604BL comes with Y-pipe to connectProduct Description: Valve Spring RPM Series Ovate Beehive Spring 409 lb in Spring Rate 1. 070 in Coil Bind 1. 034 in 1. 290 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