Another Mopar Off My Bucket List - Barracuda Fastback

69_340_GTS said
I don't know how much room there is between the top of the radiator and that brace, but... could you cut that neck off of the rad, and weld a 90° elbow to it, and then another 90° elbow to that (to make like a sideways "S"), then weld the cap/bung on top of that? Or move the fill pipe to the side of the tank? You can even put a piece of radiator hose on there and attach it to an expansion tank with a cap (i.e. '60 Corvette or '60s Fords with the big 427s, or Cobras). There are lots of ways to avoid cutting that brace. Sort of like this: View attachment 1715026644
Click to expand...

We're pretty tight. Originally I wanted to weld the existing radiator filler hole shut and add a new filler tube to the side but I'm not set up to weld aluminum and the local weld shop doesn't want to tackle the job. They said they've had bad experiences with soldered cores coming loose when they've welded some in the past. My new plan would have the pipe welded to a new bung and then I'd use an epoxy on the slip fit into the existing neck. I'd have preferred to have gone a route like you're suggesting but was gun shy after they told me that they wouldn't be held responsible if the radiator got ruined - and they thought there was a 50% chance it would.