Coil Springs: Lowered 2" (50mm) 67-9 Nova Front BB V8This is a set of USA premuim performance HOTCHKIS .. Lowering springs for the BIG Block V8 68 72 Nova.. or can also be used on BB V8 fitted in a 67 9 Firebird & 67 9 Camaro with very close lowering drop effect. These are a matched pair supplied ready to fit.. nothing else needs to be done to the suspension or shocks for these to have the lowering effect. They are rated as a 2 inch drop from FACTORY height, which may differ on your car depending on