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Old 05-18-2003, 11:55 AM
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Red face broken main cap

I have a mid-60's 327 small journal small block chevy and I JUST BUSTED THE 2nd MAIN CAP!!!! Please, someone tell me it'll be okay and where i may get another one!? I've put a bit of $$ into this and now this happens!! Is there another engine with the same size journal (small)? This 327 is the steel forged crank type. My hopes are fading away from me...........(HELP) <img src="graemlins/pain.gif" border="0" alt="[pain]" />

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Old 05-18-2003, 12:03 PM
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I think a 283 will work .It's never happened to me sorry good luck.
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Old 05-18-2003, 12:08 PM
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you can use most any small journal main cap but it might need to line bored to fit properly or if you can find several that you can test fit...? Junk yard time...

[ May 18, 2003: Message edited by: Bartman39 ]</p>
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Old 05-18-2003, 05:22 PM
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Hmmm I may be able to help. My buddie owns a machine shop and has a bunch or rare 327 blocks laying around. And misc parts.... Give me all the specifics and what you need and I will check his shop on Monday.........
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Old 05-18-2003, 06:15 PM
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any replacement cap will have to be fitted and honed to the block, you are looking at $150.00 minimum.
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Old 05-18-2003, 10:44 PM
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The block and crank had been redone shortly before i got them so i would trust a cap in like new condition in the standard size. The crank has been turned though as it requries .010 over bearings. It is the crank that has been modified though. not the block itself.
It was my fault for the breakage of the cap in the first place. Too big of a hurry and to tired to pay attention as i should have been.
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Old 05-19-2003, 08:42 AM
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The problem is that a cap or block in "like new" condition varies from piece to piece. They are NEVER exactly the same, or I should say you certainly can't assume they are the same. Even though you had recent machining done does not guarantee that a different cap will not need align boring. Core shift and machining differences from block to block make it almost mandatory to align bore. Not saying it absolutely won't work without it, but I'd have to guess that most any competent machinist would tell you to go ahead and align bore it. Good luck.
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