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90 Prelude b21a

Discussion in 'Prelude' started by sleeper759, Jan 24, 2007.

  1. sleeper759

    sleeper759 New Member

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    My friend has a 90 prelude with a b21a, but the motor has a very bad knock sounds like a bad rod or piston, so he's thinking of changing the engine but wanted to know what other motors bolt up to the tranny with no problem
     
  2. AHHVTEC

    AHHVTEC Well-Known Member VIP

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    i think the b20a5 is the only other one there is
     
  3. sleeper759

    sleeper759 New Member

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    are there any other motors out there that just bolts in or only the b20a5?
     
  4. 801CRX

    801CRX Got Rice?

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    Im going to have to agree with ahhvtec and say the b20a5 also.
     
  5. sleeper759

    sleeper759 New Member

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  6. AHHVTEC

    AHHVTEC Well-Known Member VIP

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    yea the preludes of that year are the oddballs, so if you put anything eles in it you will need new motor mounts and the whole 9 yards
     
  7. 1Funryd

    1Funryd Member

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    The only engine's that bolt straight up are the B20A5 or the B21A1's. But if it is the automatic, then it must be the tranny of the same year.

    Sean
     
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