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#27
12-24-2007, 05:11 AM
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Re: 427?
[ QUOTE ]
The 512 block was used for 69 427 and continued into 70 as a 454. however, the 427 was internally balanced and the 454 was externally balanced. Because of that, the crank, balancer and flywheel must be for the correct application. [/ QUOTE ] I've seen this before so I thought I would ask. What is the difference between internal and external balancing? 
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