Chicken or the egg

Discussion in 'Technical' started by 71nogo, May 21, 2010.

  1. 71nogo

    71nogo Member

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    Now that the motor is out, torn down, and stripped. what order do i need to follow to complete the rebuild. many parts are being reused due to budget. so have the heads reworked first? crank and cam turn first? dip and bore motor first? anyone have some good insight to this? thank you all for your help... RICK.
     
  2. sierra grabber

    sierra grabber Certifiable

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    1. dip and bore
    2. crank and rotating assembly balance
    3. cam and head installs.

    there are a lot of sub steps but im trying to stay with your list. i can give specifics as to why i would go that order if you wan also :)
     
  3. 71nogo

    71nogo Member

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    P-P-P-PLEASE:whew:
     
  4. sierra grabber

    sierra grabber Certifiable

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    1= pistons and bearings should not be purchased until you know how much you have to bore the cylinders out to get a minimum good cylinder wall (no scuffs) same with bearing surfaces. besides the block could end up having a crack somewhere that is unfixable (hope not though)
    2= once you know your block is good you can make sure your crank is good\machinable and make sure what size bearings and pistons you will need. at this point you can change the crank and rods and such if your building a stroker. once that whole rotating assembly is good, make sure you have a good flex plate\flywheel and harmonic balancer. that whole assembly should then be balanced so you can spin over 6k rpm all day with no worries.
    3= now your bottom end is complete you can put that together and put on the heads your wanting then pick a good cam to match what performance you want with your heads and your assembly.
    still much more to this, you can find tons of info using the search function ;)
     
  5. 71nogo

    71nogo Member

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    FAR-OUT!!! This is such a cool forum. Thanks alot.
     
  6. dkstuck

    dkstuck Member

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    Not much ever said here on this matter, line-bore (crankshaft journals) I've always had this checked on the first motor tear down. Usually after the rebuild never had to machine block unless something bad happened,,, race engine I always have checked when in for machining.

    Your machine shop will know and have his thoughts on this also,, anyone else's thoughts?
     
  7. sierra grabber

    sierra grabber Certifiable

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    yeah i forgot to mention that, especially if you go with a stroker crank but always a good step to have done. also our local machine shop is cr@p. all the mechanic shops i trust have told me as much. check with the shops you trust to see who does their machine work!
     
  8. 71nogo

    71nogo Member

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    i have a machine shop 1 block away. they always have cars waiting so i assume they are o.k.
     
  9. ShadowMaster

    ShadowMaster The Bad Guy

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    On an iron block with the original crankshaft? Seriously? Only time that should even be considered is when............

    Really a bad assumption to make.
     
  10. 71nogo

    71nogo Member

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    Well- thank you one and all for the great info. i will be taking my motor in to a machine shop tuesday morning. to be dipped and checked to see if it's worthy of a rebuild. keeping my fingers crossed.(y)
     
  11. 71nogo

    71nogo Member

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    i did some calling around, and i did not make the bad assumtion. thanks.
     
  12. don graham

    don graham MCG State Rep

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    A really good machine shop in Tucson is Criss's machine shop. He is off of Palo Verde. He does a lot of race stuff. I used him and would reccommend him to anyone. (y)
     
  13. 71nogo

    71nogo Member

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