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  1. #1
    My Boats:
    Cary 50
    Join Date
    Dec 2005

    454 carb to 525 EFI Conversion

    The 4 454 400's in my Cary are getting long in the tooth and I'm going to have to do something after next season. Actually, I should be doing something this winter but that would be stupid... So the question I have is this:

    Should I be watching the classified ads and pick up 4 525's for a great price or pay retail to have my 4 slugs rebuilt? I suspect the 525's use a different wiring harness and a lot of other electronic stuff that is not currently on my 454's. So it could be that someone could give me 4 525's and it still cost me more than rebuilding my own motors in rigging costs.

    Specifics: 4 454 400hp, Quadrajet Carb, Velvet Drive, TRS


  2. #2
    Charter Member # 55 Charter Member Griff's Avatar
    My Boats:
    ..........32........... Active Thunder
    Join Date
    Oct 2000
    Have you thought about 496HO's???? If you buy used 525's, you would probably be looking at valve jobs and headers in a few years.

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