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interchangable head 
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Joined: Fri Mar 20, 2009 8:23 am
Posts: 1816
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Can anybody comfirm if a head off a 5 bearing engine will fit a 3 bearing block?


Thu Apr 15, 2010 8:29 am
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Joined: Tue Aug 11, 2009 4:05 am
Posts: 50
Car(s): 1967 Bellett Auto Sedan
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I do know that a three bearing head will fit a five bearing block if you drill out the bolt holes (from 10mm to 12mm). I can't see why the opposite can't be true if you re-tap the block (from 10mm to 12mm).
(Some-one on this forum owns the auto sedan that has a three bearing head on it. I helped to do it. It also has one of my rear windows with it to replace the broken one it had on it when they bought it.)

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Fri Apr 16, 2010 12:17 am
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Joined: Tue Aug 11, 2009 4:05 am
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Car(s): 1967 Bellett Auto Sedan
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I just thought. You could also sleeve the bolt holes, but that would leave you with the skinny little 10mm three bearing head bolts.

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Fri Apr 16, 2010 12:21 am
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Joined: Fri Mar 20, 2009 8:23 am
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thank you that helps me make the decesion at hand.


Sat Apr 17, 2010 2:46 am
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