BTR Platinum Dual Spring LS Kit Steel Retainer

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 - Brand: Brian Tooley Racing (BTR) - Part Number: SK001/S/0560/BB