School me on Flathead AV8 Rads!

There has got to be some semblance to low budget option for an flathead AV8 rad. I'm building a RPU with a "A" grill shell and am looking for some options other than custom built. Are there any? I've got a couple of aluminium rads here in front of me I'm willing to hack up, can you modify a radiator core, or is it just a pain in the ***? Anything stock come close?

Primo

 

Early Mustang modified for 2 outs and 2 ins and a low pressure cap.

 

Which one should I get? V8 or Inline 6?

Ebay Link inline 6

Ebay Link V8

Primo

 

Primo~ I need to know the same thing! Did you find anything yet? Scott

 

V-8 they are 3 row cores.

 

I'm using the mustang v8 radiator with additional necks. Works great. Not big enought to fill a '32 shell though, so I added a filler plate so it wouldn't look funny. Not sure why the one guy thought you needed to run a low pressure cap. Mine works great at 12lbs.