Ultimate RPM Valve Spring Kit .650 Lift - SK703/0560/BB - Brian Tooley Racing

Ultimate RPM Valve Spring Kit .650 Lift - SK703/0560/BB - Brian Tooley Racing

Valve Spring Kit - Dual Spring - 460 lb/in Spring Rate - 1.000 in Coil Bind - 1.300 in OD - Locks / Titanium Retainers / Viton Seals / Seats - GM LS-Series - Kit