1964 429 question
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The Classic Cadillac Forum Discussion, 1964 429 question in Past Cadillac Vehicle Discussion; if i let it idle for a few mins ill get slight white smoke. its deff oil. if i rev ...
  1. #1
    superjeep is offline Cadillac Owners Member
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    1964 429 question

    if i let it idle for a few mins ill get slight white smoke. its deff oil. if i rev it ill get a light puff but seems fine when driving. it runs amazing. my 68 472 did something similar and it turned out to be valve seals. i used 67 429 umbrella seals on it. is the 64 429 seals different from the 67 429? or is there any common things to burn a little oil?

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    CaddyGas's Avatar
    CaddyGas is offline Cadillac Owners Fanatic
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    Re: 1964 429 question

    Between 64-67 everything on the motor is the same.

    seat angle-- 45 degrees

    face angle--44 degrees

    valve lift intake--.440 in.

    valve lift exhaust--.440

    valve spring pressure (valve open) lbs@in.--160@1 1/2

    valve spring installed height--1 15/16 in.

    stem to guide clearence-(intake .0005-.0025)(exhaust .0010-0025) in.

    Stem diameter- (intake .3420)(exhaust .3420)

    The only things that were different those years was, series 67 and 75 use 1 1/2 qt of coolant, and some amps on alternator at rpms.

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    superjeep is offline Cadillac Owners Member
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    Re: 1964 429 question

    Only reason I ask is,if you look up 64 429 seals they look like o-rings. If you look up 67 429 seals they are the umbrella seals

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    CaddyGas's Avatar
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    Re: 1964 429 question

    Try RockAuto... http://www.rockauto.com/dbphp/x,carc...Stem_Seal.html.

    I think Summit Racing has some, I know they got Chevy not sure about Caddy.

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    superjeep is offline Cadillac Owners Member
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    Re: 1964 429 question

    yeah i found both styles. just wondering if i can use the 67 style because I've had good luck with them. or if I'm stuck with the 64-66 style. or if thats even my problem hahaha

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    CaddyGas's Avatar
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    Re: 1964 429 question

    Using the 67 style is fine, in the motor there's no difference.

  8. #7
    P.Katson is offline Cadillac Owners Member
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    Re: 1964 429 question

    Dont overlook a bad transmission vacuum modulator as a cause for the smoke.

  9. #8
    superjeep is offline Cadillac Owners Member
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    Re: 1964 429 question

    Just did that. Its deff an oil smell

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