347stroker or 302

Discussion in 'Technical' started by J_dub, Dec 30, 2005.

  1. J_dub

    J_dub Member

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    what is the easiest way to distinguish a 347 stroker from a regular 302
     
  2. CornedBeef4.6L

    CornedBeef4.6L no longer here

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    Pull it apart;)
     
  3. Mavaholic

    Mavaholic Growing older but not up!

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    Its all internal but if you pull the pan you will see where the block is notched out for rod bolt clearance on the 347.
     
  4. RabidCustoms

    RabidCustoms sic minds demand sic toys

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    or you could look at the machinist bill, and parts invoices:D
     
  5. J_dub

    J_dub Member

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    do you have a picture of what the nothing would look like or maybe a link to a picture somewhere that would show exactly what this would look like.thanks.
     
  6. J_dub

    J_dub Member

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    notching not nothing oops
     
  7. courier11sec

    courier11sec Member

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    Just look for notches in the bottom of the cylinder bores that line up with the rod bolts. It would not be possible to distiguish the two from the outside.
     
  8. bmcdaniel

    bmcdaniel Senile Member Supporting Member

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  9. Rick Book

    Rick Book Member

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    Couldn't one pull a plug, rest a 'measuring stick' on top of the piston, turn the crank and measure the stroke? (3.0" vs 3.4" ?)
     
  10. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

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    That is great thinking, but I don't know if you could get the right angle on a wedge head spark plug hole to get a small dowel to the bottom of the stroke - now if it was a hemi head !!:clap:
     
  11. Rick Book

    Rick Book Member

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    Doh! I didn't know about that.


    Thx
     
  12. Max Power

    Max Power Vintage Ford Mafia

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    Probably the best way to tell would be to drive it.
     
  13. Rick Book

    Rick Book Member

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    ha! The most obvious of all!

    ....unless the car isn't driveable or the engine is on the floor of somebody's garage.
     
  14. bmcdaniel

    bmcdaniel Senile Member Supporting Member

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    Nascar measures displacement using a big graduated container of jelly-like stuff. They squeeze it into a spark plug hole with the piston at TDC and see how much the combustion chamber holds, then they put the piston at BDC and see how much volume it takes the fill the cylinder. Mutiply that figure by the number of cylinders.
     
  15. ratio411

    ratio411 Member

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    I think I would expect to see all sorts of invoices and reciepts.
    Even with papers, it would still be hard to tell if the work was done right.
    Someone cannot expect a premium in price if they cannot prove what they say.
    Otherwise, they may just be looking for a sucker.
    Dave
     

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