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Original Message
The magazines are wrong.
By Dave Shoe - 09/17/2002 12:43:02 PM; IP 12.104.160.195
The magazine articles that wholesale advise boring 390 blocks to 428 dimensions are flat wrong.

There are some FE and some FT blocks that can handle the overbore, but the screening technique is not what you think it is.

It is likely that an .080-over 390 block is going to be a delicate engine. Fast, maybe, but not durable. It's alternately possible the engine will rock better than ever, but you do need to investigate what you've got before taking a leap. Well, you need to investigate if you don't like pouring money into a lost cause.

The search engine here is a great place to start. use the keyword "overbore" as a starting point and go from there.

Good luck and tell us what you find out.

I agree that repeating this info so often is tough, but it's necessary because the info has been covered so poorly in print up until now. With luck, a new document should be available within a year which describes the FE in better detail. When this happens, the need to repeat will become a thing of the past.

Shoe.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=14481&Reply=14481><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor14481" onclick="return false;">Boring out 390</a>&nbsp;-- <font color=#0000ff>james lucop, <i>09/17/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=14481', contentMargin: 60, icon: $('anchor14481') }); </script>  Boring out 390 -- james lucop, 09/17/2002
 RE: Use the force (the search engine). -- Gerry Proctor, 09/17/2002
The magazines are wrong. -- Dave Shoe, 09/17/2002
 RE: Boring out 390 -- John, 09/17/2002
Collapse <a href=../ForumFE/reply.aspx?ID=14495&Reply=14481><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor14495" onclick="return false;">The bigger the bore, the more power you will have,</a>&nbsp;-- <font color=#0000ff>kevin, <i>09/17/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=14495', contentMargin: 60, icon: $('anchor14495') }); </script>  The bigger the bore, the more power you will have, -- kevin, 09/17/2002
Collapse <a href=../ForumFE/reply.aspx?ID=14498&Reply=14481><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor14498" onclick="return false;">Ok, I used the force, and searched 'overbore'</a>&nbsp;-- <font color=#0000ff>james lucop, <i>09/17/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=14498', contentMargin: 60, icon: $('anchor14498') }); </script>  Ok, I used the force, and searched 'overbore' -- james lucop, 09/17/2002
Collapse <a href=../ForumFE/reply.aspx?ID=14507&Reply=14481><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor14507" onclick="return false;">You might try a drill-bit test.</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>09/17/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=14507', contentMargin: 60, icon: $('anchor14507') }); </script>  You might try a drill-bit test. -- Dave Shoe, 09/17/2002
Collapse <a href=../ForumFE/reply.aspx?ID=14518&Reply=14481><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor14518" onclick="return false;">OK - we might do a sonic check and go to +80</a>&nbsp;-- <font color=#0000ff>james lucop, <i>09/18/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=14518', contentMargin: 60, icon: $('anchor14518') }); </script>  OK - we might do a sonic check and go to +80 -- james lucop, 09/18/2002
 You want a minimum of 0.100"; any less will... -- Dan Davis, 09/18/2002
 simple, you must get it..... -- Pete, 09/17/2002
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