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Cast crank question #2389139
10/18/17 03:29 AM
10/18/17 03:29 AM
Joined: Sep 2015
Posts: 1,096
Australia
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ozymaxwedge Offline OP
super stock
ozymaxwedge  Offline OP
super stock
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Joined: Sep 2015
Posts: 1,096
Australia
Hey guys, my Sons 440 engine is my old race engine, we have given it a freshen up and will be fitting it in a month or so. Question is are we suppose to run a flex plate with the 1/4 moon section ? I raced it for years with the "Cast crank only" balancer but had a full circle flex plate on it.

Thanks


1963 Plymouth Max Wedge
1971 Barracuda
Re: Cast crank question [Re: ozymaxwedge] #2389157
10/18/17 07:24 AM
10/18/17 07:24 AM
Joined: Mar 2006
Posts: 9,791
MI, usa
dvw Offline
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dvw  Offline
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Joined: Mar 2006
Posts: 9,791
MI, usa
Depends on if it was balanced with. Factory balance for sure need the flexplate with the section missing and the factory cast crank damper. I'm not sure it could be possible to get a light enough rotating assembly to not need it. If it was possible the front damper would be changed to standard as well.
Doug

Re: Cast crank question [Re: ozymaxwedge] #2389429
10/18/17 06:00 PM
10/18/17 06:00 PM
Joined: Jan 2003
Posts: 3,575
The Netherlands
BigBlockMopar Offline
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BigBlockMopar  Offline
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The Netherlands
I would either have everything rebalanced, or keep the engine as it was running before, but make sure you use the same convertor as well.

(Factory) stall convertors came either balanced from the factory, or neutral balanced.
Steel cranks got neutral convertors, cast cranks got balanced convertors to go with the rest of the engine balance.

Re: Cast crank question [Re: ozymaxwedge] #2389451
10/18/17 06:56 PM
10/18/17 06:56 PM
Joined: Mar 2011
Posts: 3,056
Michigan
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A727Tflite Offline
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A727Tflite  Offline
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Joined: Mar 2011
Posts: 3,056
Michigan
All converters from Chrysler were subjected to a balancing process. Some are neutral and some are not. But they were all balanced to some print spec.

Last edited by Transman; 10/18/17 06:59 PM.






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