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

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

Valve Spring Removal Tool - GM LS Engines Valve Spring Compressor - Head-On - Shaft Mount - Aluminum - Natural - GM LS-Series / Mopar V10 - Kit

Valve Spring Removal Tool - GM LS Super H.D. Valve Spring Compressor - Head-On - Shaft Mount - Aluminum - Red Anodized - GM LS-Series - Kit

Valve Spring Shims 50pk .060 GM LS Engines Valve Spring Shim - 0.060 in Thick - 1.300 in OD - 0.520 in ID - Steel - GM LS-Series - Set of 50