New on here but here goes. Had a bad heater element leak on my '55 Chevy 3100. I couldn't get it repaired and the only other option was a replacement core at £300 ($450) which I thought was expensive, So I had a go myself. I removed the old core and replaced it with a coil of 10mm (3/8") soft copper micro bore tubing. Well it works ok, Not perfect but it works and at £8 ($12) total cost is good enough for me. I would post pics on here but cant see how to do it. Sorry
