1.355 Single Valve Springs - RPM Series (16 Valve Spring - RPM Series - Single Spring - 380 lb/in Spring Rate - 1.180 in Coil Bind - 1.355 in OD - Small Block Chevy - Set of 16

1.245 Single Valve Springs - RPM Series (16 Valve Spring - RPM Series - Single Spring - 290 lb/in Spring Rate - 1.150 in Coil Bind - 1.245 in OD - Small Block Chevy - Set of 16

1.260 Single Valve Springs w/Damper - (16) Valve Spring - 1200 Series - Single Spring / Damper - 540 lb/in Spring Rate - 1.115 in Coil Bind - 1.260 in OD - Set of 16

1.355 Single Valve Springs - RPM Series (16 Valve Spring - RPM Series - Single Spring - 380 lb/in Spring Rate - 1.180 in Coil Bind - 1.355 in OD - Small Block Chevy - Set of 16

1.260 Single Valve Spring w/Damper (1pk) Valve Spring - 1200 Series - Single Spring / Damper - 540 lb/in Spring Rate - 1.115 in Coil Bind - 1.260 in OD - Each

1.324 Dual Valve Springs - RPM Series (16) Valve Spring - RPM Series - Dual Spring - 500 lb/in Spring Rate - 1.000 in Coil Bind - 1.324 in OD - GM LS-Series - Set of 16