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#1
02-15-2005, 02:24 PM
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Ext. and int. balanced rotating assemblies
Hei!
Can I use int. balanced rotating assembly in block where used to be ext. balanced assembly. Is it possible to use stock 1-pc rear main seal on older(pre-'87?) sbc block? Is there any performance difference between int. and ext. balanced assemblies? Which should I prefer? Block is 350(383) sbc. Thank you! 
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#2
02-15-2005, 02:52 PM
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re: Ext. and int. balanced rotating assemblies
The blocks don't make any difference at all. To get a two peice to work with a one piece you'll need an adaptor available form speeday motors and the like.
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#3
02-15-2005, 02:55 PM
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re: Ext. and int. balanced rotating assemblies
But a one piece rear crank won't fit an early two piece block. As for internal vs external balance= No real difference unless you are making over 750 horse and turning 8000 plus rpm.
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#4
02-15-2005, 02:56 PM
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re: Ext. and int. balanced rotating assemblies
Yes.
No. Internal. tom
__________________
Ya cain't fix stoopid, but ya kin TAX it!
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#6
02-15-2005, 03:27 PM
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re: Ext. and int. balanced rotating assemblies
Quote:
Yep and Yep.  tom
__________________
Ya cain't fix stoopid, but ya kin TAX it!
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