Changing Radiator
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500, 472, 425, 368 Discussion, Changing Radiator in Cadillac Engine Technical Discussion; I would like to change my radiator from the stock 3 row to a 4 row. The problem I'm having ...
  1. #1
    Sasquatch's Avatar
    Sasquatch is offline Cadillac Owners Fanatic
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    Changing Radiator

    I would like to change my radiator from the stock 3 row to a 4 row. The problem I'm having is locating the upper and lower mounting brackets for the 4 row. On the 3 row the tanks are 2" and on the 4 row the tanks are 2 1/2" so the stock mounting brackets won't work. Any ideas? What year and model Caddy came with a 4 row radiator maybe I could find the brackets in a junk yard and go with brand new radiator? Thanks.
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  3. #2
    Angela Desmond is offline Cadillac Owners Fanatic
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    Re: Changing Radiator

    I believe the 425's ( '77-'79) came with a 4 row. If you have trouble locating one in the yards, go to a radiator shop for a new one. Someone else on this board just had trouble at one of the major parts chain stores trying to get a new 4 row.

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    Sasquatch's Avatar
    Sasquatch is offline Cadillac Owners Fanatic
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    Re: Changing Radiator

    I've found the radiator it's the mounts I'm having trouble with.

  5. #4
    Angela Desmond is offline Cadillac Owners Fanatic
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    Re: Changing Radiator

    Take a look at the 425 brackets. may have to weld a little metal along the bottom and top to reach in a bit further. Just watch your fan clearance. Hose length may be slightly different, but nothing a little cutting won't cure.Worst comes to worst, fabricate some brackets from hard rubber. By the way, the 425's were in '77-'79 DeVilles.

  6. #5
    DaveSmed's Avatar
    DaveSmed is offline Cadillac Owners Connoisseur
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    Re: Changing Radiator

    I remember you saying you had a fixed fan. I'm guessing your car does not have A/C. Try and find an A/C equipped car, and grab some of the coooling goodies off of that. I know they had clutch fans, and I think they had 4 row radiators.

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