Chevy LS Spring Kit 1.295 w/Ti-Retainers Valve Spring Kit - Dual Spring - 379 lb/in Spring Rate - 1.100 in Coil Bind - 1.295 in OD - Titanium Retainer - GM LS-Series - Kit

1.514 Dual Valve Spring & Retainer Kit w/Damper Valve Spring Kit - Dual Spring / Damper - 348 lb/in Rate - 1.150 in Coil Bind - 1.514 in OD - Locks / Chromoly Retainers - Kit

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

HR Valve Spring Kits - Beehive GM LS Valve Spring Kit - Beehive Spring - 313 lb/in Rate - 1.140 in Coil Bind - 1.290 in OD - Locks / Chromoly Retainer - Viton Seal - 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