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Old 03-08-2010, 11:22 PM   #4
f.monroe
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Join Date: May 2004
Location: Caldwell,Tx.
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Re: 427 or 454: how can you spot the difference?

454's are externally balanced . Look at the inside of the harmonic balancer for a cast in counterweight . If it is an automatic, the flexplate will have a weight spot welded on the outer perimeter just inside the ring gear also.
Frank
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Last edited by f.monroe; 03-08-2010 at 11:23 PM.
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