390 flywheels?
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Other Cadillac Engines Discussion, 390 flywheels? in Cadillac Engine Technical Discussion; I am rebuilding a 62 390 and want to dyno it when I am done to break in the engine ...
  1. #1
    Fastestwing is offline Cadillac Owners Member
    Automobile(s): 62 Coupe DeVille
    Join Date
    Jun 2011
    Posts
    2

    390 flywheels?

    I am rebuilding a 62 390 and want to dyno it when I am done to break in the engine to tune the carb and dial in the dist timing curve. My question is, since the stock ring gear is on the convertor can a flywheel for a 472/500 be bolted on (will it fit) and without balance problems?
    Thanks for any input on this.
    Brian

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  3. #2
    DouglasJRizzo is offline Cadillac Owners Enthusiast
    Automobile(s): 1975 hearse, 1976 hearse
    Join Date
    Nov 2010
    Location
    Franklin Lakes, NJ
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    Re: 390 flywheels?

    I don't believe the 472 flywheel will fit. You may have to attach a working transmission to this engine for dyno tuning.

  4. #3
    Fastestwing is offline Cadillac Owners Member
    Automobile(s): 62 Coupe DeVille
    Join Date
    Jun 2011
    Posts
    2

    Re: 390 flywheels?

    Thanks, but engine dynos are not set up to accomidate or be driven of a transmission. They have abell housing type rear mount and are driven off the crankshaft via a manual trans type flywheel. Problem I have is the 62 390 wasn't available with a manual trans that I can tell, so I am looking to adapt something else for test purposes.

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