62 318 Poly to Big Block Swap

1962 - 1965 Mopars

  1. matthon

    matthon Well-Known Member

    Messages:
    280
    Likes Received:
    147
    Joined:
    Mar 3, 2018
    Location:
    New York
    Local Time:
    12:18 AM
    Will the stock 22", auto, no a/c, poly radiator work well?

    Will the stock torsion bars work well?

    I have a stock '71 383 and a 4 speed with an aluminum intake and bellhousing, and headers.

    62 big block radiators, and many others, are all 22" according to what I can locate. Not sure on the number of rows.

    And the poly is no light weight.
     
  2. PurpleBeeper

    PurpleBeeper FBBO Gold Member FBBO Gold Member

    Messages:
    4,250
    Likes Received:
    3054
    Joined:
    Mar 20, 2011
    Location:
    Chicago
    Local Time:
    11:18 PM
    My gut instinct is that both you radiator & torsion bars will be fine.
     
    • Agree Agree x 1
    • Glenwood

      Glenwood Well-Known Member

      Messages:
      2,828
      Likes Received:
      2386
      Joined:
      Jun 19, 2015
      Location:
      Kawartha Lakes, Ontario
      Local Time:
      12:18 AM
      Worked fine for my 64. I'd like the rad to be a bit wider but the support would have to be modified. Poly torsion bars are ok although my top end is now all aluminum.
       
    • Rick62

      Rick62 Well-Known Member

      Messages:
      537
      Likes Received:
      660
      Joined:
      May 20, 2010
      Location:
      Greer, SC
      Local Time:
      11:18 PM
      I think the correct big block radiator has the top hose connection located to the passenger side as opposed to near the middle. The lower hose connection for the big block is farther toward the drivers side because of the oil filter location. I've used the 318 22" radiator with no problems. Using a short oil filter helps with lower hose clearance.
       
      • Agree Agree x 3
      • matthon

        matthon Well-Known Member

        Messages:
        280
        Likes Received:
        147
        Joined:
        Mar 3, 2018
        Location:
        New York
        Local Time:
        12:18 AM
        Anyone that had power steering, were different brackets needed?
         
      • miller

        miller FBBO Gold Member FBBO Gold Member

        Messages:
        3,555
        Likes Received:
        1607
        Joined:
        Jan 5, 2014
        Location:
        Tom Bean,Texas
        Local Time:
        11:18 PM
        Power steering in my 64. But, motor is 69. Get the brackets for the year engine you have in it.
         
      • Glenwood

        Glenwood Well-Known Member

        Messages:
        2,828
        Likes Received:
        2386
        Joined:
        Jun 19, 2015
        Location:
        Kawartha Lakes, Ontario
        Local Time:
        12:18 AM
        The brackets and pump pulley are different. I had to buy one from a pre65 big block even though my block is a 73 413 truck motor.
         
      • Frustration

        Frustration Well-Known Member

        Messages:
        296
        Likes Received:
        379
        Joined:
        Dec 8, 2014
        Location:
        PA
        Local Time:
        12:18 AM
        I think they'll be fine. The torsion bars may be a bit soft in corners if you're doing that sort of thing. The radiator should work. I used a similar one in our 440 combo. I did need a shroud, and the fan-to-radiator dimension is really tight. A buddy had a custom one made for a project he no longer needed. I modified it to work on my Mopar and it really made a big difference in the summer months. Good luck. vert shroud installed.JPG Vert shroud 1.JPG vert shroud 3.JPG
         
        • Like Like x 1
        • matthon

          matthon Well-Known Member

          Messages:
          280
          Likes Received:
          147
          Joined:
          Mar 3, 2018
          Location:
          New York
          Local Time:
          12:18 AM
          @Glenwood would you happen to have a pic of you power steering?
           
        • Glenwood

          Glenwood Well-Known Member

          Messages:
          2,828
          Likes Received:
          2386
          Joined:
          Jun 19, 2015
          Location:
          Kawartha Lakes, Ontario
          Local Time:
          12:18 AM
          443965-38fef824d762ade40c854ccfbbf4204a.jpg
          443963-c4a1bc90d7f373197eecc940d51a5859.jpg
          426622-cffc9ab55352425b38c8112661f03595.jpg
           
        • matthon

          matthon Well-Known Member

          Messages:
          280
          Likes Received:
          147
          Joined:
          Mar 3, 2018
          Location:
          New York
          Local Time:
          12:18 AM
          3 more questions:

          A friend used a 318 poly radiator in a big block swap, and he said the lower radiator inlet is smaller than the big block water pump outlet, and had to have a bigger inlet installed to accept the proper size hose.

          Is this correct?

          The Hurst shifter package available is pricey, $585+, and Brewers states the handle may have to be modified, bent below the boot.

          Brewers lists a complete shifter package that fits 66-70 and 62-5 with A833.
          They also have a rod package set that fits 1964-69.

          I have a chance to buy what appears to be the correct 4078 handle with shifter, but no rods.

          Is there a certain number I s/b looking for stamped into the shifter?

          Has anyone pieced this setup together with the 64-69 rod package?
           
        1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
          By continuing to use this site, you are consenting to our use of cookies.