HR Valve Spring Kits - Dual GM LS Valve Spring Kit - Dual Spring - 392 lb/in Rate - 1.020 in Coil Bind - 1.304 in OD - Chromoly Retainer / Locks / Viton Seal / Steel Seat - GM LS-Series - Kit

1.207 Valve Spring Kit GM LS Beehive Design Valve Spring Kit - Ovate Beehive - 340 lb/in Rate - 1.100 in Coil Bind - 1.207 in OD - Locks / Chromoly Retainers - Kit

Dual Valve Springs - (16) GM LS Valve Spring - RPM Series - Dual Spring - 425 lb/in Spring Rate - 1.055 in Coil Bind - 1.280 in OD - GM LS-Series - Set of 16

1.034 Valve Spring Kit GM LS - Hot Rod Series Valve Spring - Hot Rod Series - Dual Spring - 392 lb/in Spring Rate - 1.020 in Coil Bind - 1.034 in OD - Chromoly Retainers / Locks / Viton Seals / Seat...

1.274 Dual Valve Spring GM LS Valve Spring - RPM Series - Dual Spring - 550 lb/in Spring Rate - 1.045 in Coil Bind - 1.274 in OD - GM LS-Series - Each