500 fuel injection intake
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500, 472, 425, 368 Discussion, 500 fuel injection intake in Cadillac Engine Technical Discussion; I came across an intake for a 500 cid Cadillac with TBI. The part number on it is 1615446. None ...
  1. #1
    elk9300` is offline Cadillac Owners Fanatic
    Automobile(s): 1985 Fleetwood Brougham 1996 Cadillac Fleetwood Brougham
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    500 fuel injection intake

    I came across an intake for a 500 cid Cadillac with TBI.

    The part number on it is 1615446.

    None of my parts books have this listed, however my parts books go from 76-81 and 82-85.

    Can anyone verify if this was for a mid'-75 TBI for 500cid?

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  3. #2
    The Ape Man's Avatar
    The Ape Man is offline Cadillac Owners Connoisseur
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    Re: 500 fuel injection intake

    Assuming that you meant to say EFI intake: I'm pretty sure that the 425 and 500 EFI intakes are the same beast. My intake was last used on a 500 but started life on a 1978 425. PN 1616059.
    Your number does not show up in the bible here either. Chilton parts and time guide from 1984 lists my intake as 3516375 which isn't a match to the number on the manifold itself. We might be reading casting numbers which could be different from a part number.
    There might be some difference in EGR setup but if it looks like a 500 intake then it should work. Other than that the paint color was different.
    If you are dealing with a TBI intake then is has to be from a 1981 368 or later limo.

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