An original rad should have enough capacity for your V6. You should be able locate one on E Bay, or thru one of the Parts suppliers such as Jim Carter, or Chev's of the 40's. You may need to add an electric booster fan. I am running the original rad in my 1940 with a 327 V-8.


1940 Chevy KC 1/2-Ton
In the Stovebolt Gallery