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383 internal or external balance?

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Old 10-05-2010 | 12:42 PM
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69POLARA383
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383 internal or external balance?
How can I tell? 69 383, from roadrunner, balancer has 3 holes drilled in it but no weights, I understood the 383 to be internally balanced? How can I tell if the motor is pulled n on a mount?
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Old 10-05-2010 | 07:17 PM
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From: couer d' alene id.
the 383 is internally ballanced, if its a forged crnk it internally, cast externally
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Old 10-05-2010 | 07:27 PM
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mr.power
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Look on the front of the block
Last edited by mr.power; 10-17-2010 at 08:54 AM.
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Old 10-09-2010 | 06:03 AM
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All 383 engines are internally balanced, and a handful of early 400's also were. I had an original '72 400 Roadrunner which had one of these engines in it.
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