602 flywheel question

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  • rubbinsracin
    Senior Member
    • Aug 2009
    • 668

    #1

    602 flywheel question

    so i am going with a 602 crate this year and would like to continue to run the quick time lightweight flywheel we have always ran on our steelheads but were unsure if we need to run some type of balance plate like guys run on a 383 or 400. we plan on getting a reverse mount setup for next year but its just not in the budget this year.

    Here is a link to the flywheel exactly like we run. can someone tell me what we need to make this flywheel work with our 602?



    could we just bolt one of these balance plates on and call it good?

  • Egoracing
    Senior Member
    • May 2007
    • 4852

    #2
    The ballance of the crate is NOT the same as the older 2 piece crank shaft. Also the bolt hole pattern is different. You would only be able to run a like flywheel if you bought a new one for the crate.

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    • stillfast
      Senior Member
      • Oct 2007
      • 353

      #3
      balance plate

      In the Lane Automotive catalog, Quick Time has a balance plate made for the 602 crate motor.

      Comment

      • brad hibbard
        Senior Member
        • Oct 2007
        • 974

        #4
        602 604 are external balance and 1 piece seal

        Originally posted by stillfast View Post
        In the Lane Automotive catalog, Quick Time has a balance plate made for the 602 crate motor.
        you are correct but that is to be used with their LW flexplate that does not have a weight.

        the GM crate engine and all SB chevy 1 piece seal engines (86 up) require a flywheel with the new style bolt pattern

        the older flywheels will not even bolt on and the GM 602 and 604 engines require an external weight.

        Brad

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        • rubbinsracin
          Senior Member
          • Aug 2009
          • 668

          #5
          Well crappy...anyone want a brand new flywheel shipped to your door for $50 and a couple bucks shipping???

          Comment

          • sj valley dave
            Senior Member
            • May 2007
            • 1016

            #6
            Get on the Late Model Racer board and post it. I know that a lot of the S/S guys run the 5.5 and 7.25 clutches on that flex plate

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