Any advice or suggestions for getting a heater core fixed for a 41 chevy pickup?

 

Probably your local Radiator shop if you can find one. We live in a world of through away things and yes Radiators are one of the many cheap crap that can't get rebuilt anymore.

 

If a rad shop can't recore it, will need to find a similar size core that you can use. I had that problem with a boat heater. Local auto store had a book with hundreds of cores - just had to find one with the same dimensions. Let us know what you do AND pics of your project please!!