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  1. #1
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    WTB 90's 2.5 block and crank XR

    Rod took out block and crank, bad. Mainly need block. Front half is ok
    502-500-0371 Louisville,Ky

  2. #2
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    they say not the mix match front and back but you might be ok??


  3. #3
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    Quote Originally Posted by Aaronhl View Post
    they say not the mix match front and back but you might be ok??
    "they say"
    Yes, they say that but people do (very reputable engine builders) all the time with no issues. Spin 7k to 8k and up on mismatched halves...its user/builder preference. I have spun them up to 7000 personally with no issues. Just really have to make sure the wear from the crank sealing rings won't cause binding on the crank.

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  5. #4
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    I have a 93, 150 XR6 powerhead that I picked up in a pile of parts I bought. Its still together (block, crank, pistons), has one burnt piston and spins freely. No electrics and someone broke the starter mount off the front half so it needs a new one if interested?

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