A friend of mine solved this problem by taking his old radiator and a good 4 core cross-flow radiator to his favorite radiator shop and having it converted to a downflow (up-flow?). He said it only cost him abour 50 bucks,and it cools GREAT. It was just a matter of moving the filler a quarter turn,basically standing the crossflow on end,and swapping the brackets from his old radiator.It bolted right in.
Just a thought...
Speed


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck