Heater core reconditioning for your antique or classic car.
They say:
Classic Heaters is where you can send the heater core for your Classic or Antique car or truck to have it put back into like new condition. After decades of use, non use or poor maintenance your heater can become internally clogged to the point where it puts out little or no heat or it can develop leaks from normal wear and tear.
After receiving your heater core for recoring we will remove the tanks and brackets, glass bead them, straighten or replace damaged necks, solder them onto a new core and test to the appropriate pressure. We will then inspect it for appearance and soak it in "Green Stop'. This solution prevents green corrosive build-up on the exterior of your heater core and also on the inside in case you don't install it right away.