what flywheel to use

Discussion in 'Technical' started by driftwood, Feb 22, 2013.

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  1. driftwood

    driftwood Member

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    scuze me ,bought flex plate :) and i trashed the 250 one when i took it out.stupid me didn't realize it could be used with the v-8 junked the 250 cause there was 3 HUGE holes in the block where the guy rapped it out so tight he blew the back two pistons and rods thru the side of the block. then lately found out guys are looking for the manifold that was in great shape.oh well
     
    driftwood, Feb 23, 2013
    #16
  2. Krazy Comet

    Krazy Comet Tom

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    The 250 flexplate is zero balance, can't be used with a 289/302...
     
    Krazy Comet, Feb 23, 2013
    #17
  3. John Holden

    John Holden Member

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    Hey you guys are right. Good catch! I forgot about the balance. Again, good catch!
     
    Last edited: Feb 25, 2013
    John Holden, Feb 23, 2013
    #18
  4. driftwood

    driftwood Member

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    lmao all these answers and still not for sure what i should buy or take back and buy. anybody for SURE know what i need. thanks a ton for the info
     
    driftwood, Feb 25, 2013
    #19
  5. baddad457

    baddad457 Member

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    Chances are you need a 28oz/in, 157 tooth flexplate here. There's a lesser chance you'll need a 28 oz/in 164 tooth flexplate, it all depends on the bellhousing on the transmission.
     
    baddad457, Feb 25, 2013
    #20
  6. John Holden

    John Holden Member

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    I just edited my last post so it's not confusing things. If you're using a trans from a 250 and installing a 1977 302 all you need is a 157 tooth flywheel with 28oz imbalance.
     
    John Holden, Feb 25, 2013
    #21
  7. x72COMETx

    x72COMETx Member

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    i have and 85 302 engine im building and im going to use the trans of my 250 i6 can i use the flywheel on that or do i need a dif one sense its an 85 block
     
    x72COMETx, Apr 10, 2013
    #22
  8. Mavman72

    Mavman72 Gone backwards but lookin' forward

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    You will need a 50 Oz imbalance flex plate...
     
    Mavman72, Apr 10, 2013
    #23
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