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429 to 500 swap

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  • CHUCK SIMS
    Hello, all. I have a question I m hoping you guys can answer for me. I m doing a restification on a 65 Fleetwood Brougham for a buddy that came with a 429 and
    Message 1 of 4 , Jun 11, 2004
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      Hello, all. I have a question I'm hoping you guys can answer for me.
      I'm doing a restification on a '65 Fleetwood Brougham for a buddy
      that came with a 429 and an unknown trans. Here are my questions....
      What trans is in this thing? Will a 500 from a '76 Eldo bolt into
      the car the same as the 429?(they appear to bolt into both cars the
      same way. motormount placement wise.) Will the 500 bolt to the
      existing trans in the Fleetwood? Any help is greatly
      appreciated. Thanx,Chuck
    • Frederic Brown
      The 500 will not bolt the 429 engine mounts. The transmission also will not work. However Cadillac installed the 472 in 1968 (472 and 500 are the same block),
      Message 2 of 4 , Jun 11, 2004
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        The 500 will not bolt the 429 engine mounts. The transmission also will not work.  However Cadillac installed the 472 in 1968 (472 and 500 are the same block), so you need to find a 68 cadillac for a donor, for the motor mounts, cross-member. drive shaft etc.  It can be a bolt in with the parts from a 68 donor.  Contact http://www.500cid.com as he has done this swap, said it was easy and looks factory.
        ----- Original Message -----
        Sent: Friday, June 11, 2004 8:31 PM
        Subject: [Cadillac_Performance_Association] 429 to 500 swap

        Hello, all. I have a question I'm hoping you guys can answer for me.
        I'm doing a restification on a '65 Fleetwood Brougham for a buddy
        that came with a 429 and an unknown trans. Here are my questions....
        What trans is in this thing?    Will a 500 from a '76 Eldo bolt into
        the car the same as the 429?(they appear to bolt into both cars the
        same way. motormount placement wise.) Will the 500 bolt to the
        existing trans in the Fleetwood? Any help is greatly
        appreciated.                         Thanx,Chuck


      • CHUCK SIMS
        Thanx for the info, I ll check out the site. Chuck
        Message 3 of 4 , Jun 11, 2004
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          Thanx for the info, I'll check out the site. Chuck
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