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Found some early bullseye headlights. After a little reworking, now have brighter LED headlights and the bonus is they look cool. Here's some before and after pics

23-1/2, center-to-center of the bolt holes, per my DeSoto. Just measured mine. Definitely not 22 inches.

I just measured the spacing on the bolts on my radiator. It is a little difficult to measure acurately while it is in the car, but they appear to be close to 22 inches center to center. I have a 48 Dodge D24. so it may not be the same as a Desoto.

In your first picture it looks like there’s a parts number on the back of the radiator, top right.

Well, something is wrong and the parts manual doesn't seem to show any sort of filler panel to mate them.

I've never drilled out those spotwelds to take a gander, but considering the technology of that era, that might just be a cork gasket in there that probably dried out and has some cracks in it. I had one that leaked a little on the '48 but I drove it on so many dusty roads that after awhile, it didn't seem to leak any more. I plan on injecting a sealant into that seam on the next rebuild.

Just saw this post and it reminded me of an article that was circulating in the experimental aircraft community a few years ago. Combination of a torch and brake cleaner can be catastrophic! https://www.brewracingframes.com/safety-alert-brake-cleaner--phosgene-gas.html

If you don’t have the ability or tools needed, a decent radiator shop will run solder around that in a matter of minutes.

Sure you have the right radiator, or core support?

No I did not, but I just followed this articleHeadlights.doc

I would clean and braze or solder it.

It's probably some kind of gasket. Maybe some kind of sealant from the inside at the bottom? Or a light tap with a flat hammer from the inside on the bevel to flatten it more against the gasket? Hard call.

DJ is correct. The radiator flange(s) go on the inside of the support and the radiator does not sit in the bottom of the support. So you have to lift the radiator to line up the holes on the flange(s) and the support and then use the bolts, going through the flange first and then into the support, to attach them together. It looks like your support will need to be pulled inward on the sides to line up the holes. Be careful working around the fan, too. I always tape a piece of cardboard over the radiator core so as not to have the fan damage the fins.

Check the motor mounts. The engine may be shifting position on the slope causing the shifter linkage to bind.

Not yet, they're just sitting on there right now, I'm going to wire them up eventually

Ok it runs!!! Now get off my back haha ?❤️ https://youtube.com/shorts/vAMuzkJkiHo?feature=share Gotta get this brake system finished and the tires handled so I can road test it.

BTW you don’t need some gizmo to make the air swirl. You stick a “finger” into the airflow and a vortex will shed from the tip. Because the airflow over the sides of the “finger” (fin) will never be perfectly equal, when you get to the tip, one flow will spin the other into a little tornado. This is a form of drag on an aircraft wing and they do special things to the wings to control this extra drag. and while this vortex in your carburetor might increase atomization and fuel economy at low to normal speeds, when you stick something in your Venturi you’re decreasing the area of your wide-open throttle. Now you have to make the carburetor a little bit bigger. It was a dead end technology. Everybody wanted to make the carburetor smaller to save money. A snake eating its own tail. Nowadays all that swirling action is modeled into the airflow on computers, and you’re not going to improve it in most cases without a lot of knowledge. Where will you be able to improve it? In cases where the manufacturer decided they would sacrifice a little bit in order to save money on production.

Tiny? Check this out. A recent acquisition of mine. One of my bucket list cars. 1958 BMW Isetta 300

If you end up finding a replacement, PLEASE don’t throw away the old ones! I would have the oem re sleeved any day ?

I've always ran champions in all my Mopars, but I see that a lot of people on this page run the Autolite 306 in their flatheads, so I guess I'm going to give that a shot