6223 steel crank - Team Camaro Tech
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post #1 of 5 (permalink) Old Oct 3rd, 05, 02:13 PM Thread Starter
 
Join Date: Sep 2005
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6223 steel crank

I recently aquired a 3855961 block dated Oct. 65, I assume that it is a 396 but the crank is confusing me, the only numbers on it are 6223 and the information that is on the internet is that it is either a 396,402, or 427 crank. Isn't there a difference between a 396 and 427 crank? If so how do you tell them apart?
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post #2 of 5 (permalink) Old Oct 3rd, 05, 04:06 PM
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Re: 6223 steel crank

One of the counter weights is bigger on a 427 crank. If you lay a 396 and a 427 crank side by side you can see the difference.
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post #3 of 5 (permalink) Old Oct 11th, 05, 06:10 PM
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Alex
 
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Re: 6223 steel crank

427 is #7115. That's a 396 crank. Same stroke and work the same. But a heck of alot less money!
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post #4 of 5 (permalink) Old Oct 12th, 05, 04:53 PM
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Re: 6223 steel crank

The origonal crank in my L72 was a 6223. Cross drilled and large counter weight. I also have one that came out of a 396 no cross drill and the counter weight is turned smaller.
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post #5 of 5 (permalink) Old Oct 12th, 05, 05:40 PM
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Bill
 
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Re: 6223 steel crank

russ,
366, 396, 402, and 427 all used the same 6223 crank forging at one time or another. The cranks were finish machined slightly differently due to balance issues, but the cranks are basically the same. They are all the same stroke. I have a 366 truck crank at the shop I am getting ready to use building a 427.

Bill Koustenis
Owner
Advanced Automotive Machine
Waldorf Md
1971 Chevelle "Heavy Chevy" original owner


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