trying to find a replacement heater core that FITS!

i know this thread is old. i just wanted to mention that when needing to tweek the heater core so it will fit, try and find a large spring that will just fit inside the hard line. that will help keep the line from kinking and give you enough control to bend it without breaking the solder joint. the last one i did from Quest Auto needed to have one line moved almost and inch and a half.

POS :protest: