Our 1969-1971 Heater Control Coolant Valve is an AC Delco replacement that is a direct fit for your Corvette. This valve, if defective, will heat up the inside of your Corvette if stuck in open position. If you can't get heat, it may be stuck in the closed position. Valve install inline of the heater hose. With help from a manual and a catch pan, you can change this vale at home. Hose clamps will also need replaced
ACDelco