Harmonic balancer/timing chain cover question

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02-26-2015, 04:56 PM

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Pro

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Harmonic balancer/timing chain cover question

Does high horsepower 427's have an 8" balancer and if so are the covers the same as a 454? I have a 427 engine with a 454 crank and want a correct looking cover not an after market cover with a bolt on tab.
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02-26-2015, 09:45 PM

Solid LT1

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427 Rat is internally balanced, 454 is EXTERNALLY balanced so harmonic balancers are different wont interchange. Timing cover tabs are the same, both 8" OD balancers

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02-26-2015, 10:35 PM

Jeff_Keryk

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Yes, the base 427's, like my L36 had the smaller, 7" dampers.

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