1.265 Valve Spring Set 16pk Single w/Damper Valve Spring - Single Spring / Damper - 415 lb/in Spring Rate - 1.150 in Coil Bind - 1.265 in OD - Set of 16

1.538 Dual Valve Springs w/Damper 16pk Valve Spring - Hot Rod Series - Dual Spring / Damper - 436 lb/in Spring Rate - 1.090 in Coil Bind - 1.538 in OD - Set of 16

1.570 Dual Valve Spring Set w/Damper (16pk) Valve Spring - Max-Life - Dual Spring / Samper - 644 lb/in Spring Rate - 1.150 in Coil Bind - 1.570 in OD - Set of 16

1.525 Valve Single Valve Springs w/Damper (16) Valve Spring - Single Spring / Damper - 462 lb/in Spring Rate - 1.200 in Coil Bind - 1.525 in OD - Set of 16

1.445 Valve Spring Kit Single w/Damper Valve Spring Kit - Single Spring / Damper - 350 lb/in Rate - 1.100 in Coil Bind - 1.445 in OD - Locks / Chromoly Retainers - Kit

1.485 Valve Spring Set Single w/Damper Valve Spring - Single Spring / Damper - 355 lb/in Spring Rate - 1.150 in Coil Bind - 1.485 in OD - Set of 16