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Old 03-18-2010, 05:28 PM
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383 chevy stick flywheel

I'm building a 383 chevy. 350 block and 400 crank. I need a flywheel for standard trans. Do I use the 350 flywheel or what? I am confused about the internal vs external balancing issue.

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Old 03-18-2010, 07:42 PM
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What is the crank you are using?? They can be bought both internal or external balance. This will determine which flywheel you need.
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Old 03-18-2010, 07:43 PM
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If you are using a 400 balancer (ext balance) you will need a 400 flywheel. 400 stick flywheels in stock form are hard to find. Probably have to go with an aftermkt steel one.

If you have the crank internally balanced, you can use a 350 type wheel. But, internally balancing a 400 type crank will cost you more. Last time I had a customer insist on internal balance. He had over $600.00 in a cast crank.

Eight pieces of Mallory metal ($$$$$)plus a lot of labor.
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Old 03-18-2010, 08:07 PM
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I have a 400 crank and a external balance front damper.
I've been told to use a 350 flywheel with a add on balance plate that mounts between the crank and the flywheel. Does this work?
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Old 03-18-2010, 08:20 PM
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Quote:
Originally Posted by 65ELCMO
I have a 400 crank and a external balance front damper.
I've been told to use a 350 flywheel with a add on balance plate that mounts between the crank and the flywheel. Does this work?
Yes, but can cause problems for the starter, since you are moving the whole flywheel out away from the crank flange equal to the thickness of the weight plate. The correct flywheel is a better idea.
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Old 03-18-2010, 08:23 PM
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Are you aware that the cost of grinding the 400 crank's mains down to fit in a 350 block costs about the same as just buying a new 383 stroker crank??
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