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351m/400 flywheel interchange?

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Old Sep 27, 2002 | 09:55 AM
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351m/400 flywheel interchange?

Anybody know if the 351m and 400 use the same flywheel,before I go pulling one off for no reason.I guess the balancers are different but useable.If I use a 351 flywheel and 351 balancer on a 400,everything should work out,right?Thanks.
 
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Old Sep 27, 2002 | 09:15 PM
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351m/400 flywheel interchange?

I went to partsamerica.com and plugged in a 1980 f250 with a 400. Then I plugged in the same truck with a 351m. The numbers for the flywheel and flexplate were the same.
 
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Old Sep 27, 2002 | 11:19 PM
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351m/400 flywheel interchange?

You can check part numbers at http://www.oreillyauto.com/ also, it is a nice usefull tool :-)





 
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Old Sep 29, 2002 | 01:11 AM
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351m/400 flywheel interchange?

[updated:LAST EDITED ON 29-Sep-02 AT 02:18 AM (EST)]Are you working with an auto trans or standard shift? They are the same flexplate for the auto trans for sure, and should be the same for a standard shift.

And keep whatever balancer on the motor it belongs on. I don't think you need to swap them.
 
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Old Oct 1, 2002 | 11:42 AM
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351m/400 flywheel interchange?

I believe that the 351M has an 11" clutch, & the 400 has a 12" clutch. This will make a difference when bolting up the pressure plate if you are working on a standard shift. The holes could be transferred and drilled/tapped if req'd.

Fordy
 
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Old Oct 1, 2002 | 02:04 PM
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351m/400 flywheel interchange?

www.autozone.com is another good one for checking parts...


 
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Old Oct 2, 2002 | 01:17 AM
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351m/400 flywheel interchange?

 
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