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Repowering M, with 400 engine


 
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dean jasper
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Joined: 24 Mar 2020
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PostPosted: Wed Mar 25, 2020 4:51 am    Post subject: Repowering M, with 400 engine Reply to specific post Reply with quote

Bringing my Dads 47 M back to life. Repowering with 400 engine. Can anyone out there give some helpful information? I believe I have to change governor, & clutch, flywheel.
 
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jd man wis
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PostPosted: Thu Mar 26, 2020 5:03 am    Post subject: Re: Repowering M, with 400 engine Reply to specific post Reply with quote

I have seen some of the guys do that
switch with 350 an 40s and they do good
for the couple of the tractor pulls only
to have guys at the next pull be a bunch
of rule police and get them to have to
pull in the open class or imove class. I
think it is cool when someone builds a
tractor to pull and to do good with it. I
have seen some Hs with 318 360 350 an
bigger in them an they do good. On the H
and M with a bigger crank and cam and
bore a guy can get very good power out of
them an look stock. In pulling you can do
any thing you can to the tractor as long
as u don't win or beat someones buddy
then the next pull here comes the tractor
club police.
 
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VicS
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PostPosted: Thu Mar 26, 2020 5:38 am    Post subject: Re: Repowering M, with 400 engine Reply to specific post Reply with quote

Here in Southern Illinois have to be at least that big to not power out in 1st. No body will care if you have a 400 450 motor. Because theirs will be 100 cu. Bigger.
 
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LCB
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PostPosted: Thu Mar 26, 2020 2:59 pm    Post subject: Re: Repowering M, with 400 engine Reply to specific post Reply with quote

Take orginal block pull sleves and run 450 pistons and use 450 head manfold head carubator.
 
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EP
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PostPosted: Fri Mar 27, 2020 2:32 am    Post subject: Re: Repowering M, with 400 engine Reply to specific post Reply with quote

Use the 400 flywheel and use a super m
clutch disk. It's 12 inch compared to
11.5. Everything else will bolt in, keep
400 governor.
 
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20MuleTeam
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PostPosted: Sat Mar 28, 2020 12:29 pm    Post subject: Re: Repowering M, with 400 engine Reply to specific post Reply with quote

2" stroke would be a good idea, maybe?
 
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