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Discussion Starter · #1 ·
I am considering doing a 4 speed change over. My 70 Chevelle has a 454 (not original motor) in it now. How do I determine if I need an internally or externally balanced flywheel?

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70 Chevelle SS
454/400T.H.
Black/White Stripes
My 1970 SS
 

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Your 454 is externally balanced. They all are. Unless somebody has spent big bucks to internally balance the crankshaft. But if it's stock, I doubt it.
You'll be able to tell by looking to see if there is a counterweight cast into the damper (on the front of the crank), or not.

Nate



[This message has been edited by SS3964N8 (edited 12-25-2001).]
 

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Discussion Starter · #3 ·
Thanks Nate.

I'm sure that no one has had this engine balanced, so thanks for answering my question.

Jody

------------------
70 Chevelle SS
454/400T.H.
Black/White Stripes
My 1970 SS
 
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