Platinum Dual Spring LS Kit Steel Retainer - SK001/S/0560/BB - Brian Tooley Racing

Platinum Dual Spring LS Kit Steel Retainer - SK001/S/0560/BB - Brian Tooley Racing

Valve Spring Kit - Dual Spring - 380 lb/in Spring Rate - 1.070 in Coil Bind - 1.300 in OD - Locks / Steel Retainers / Viton Seals / Seats - GM LS-Series - Kit