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Farmall m head


 
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Farmallhm44
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Joined: 11 Jun 2019
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PostPosted: Tue Jun 11, 2019 2:30 pm    Post subject: Farmall m head Reply to specific post Reply with quote

Is there anything that can be done to a stock Farmall M head to increase hp?
 
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mmfan55
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PostPosted: Wed Jun 12, 2019 3:42 pm    Post subject: Re: Farmall m head Reply to specific post Reply with quote

Take it to an engine machine shop and
have it "shaved ". Not a large
increase but will help some.
 
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rustred
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PostPosted: Wed Jun 12, 2019 5:18 pm    Post subject: Re: Farmall m head Reply to specific post Reply with quote

anything that decreases combustion chamber volume. have new seats and valves, plane the head, 40-50 thou. go out on a limb and do some welding in there.
 
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showcrop
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PostPosted: Wed Jun 12, 2019 5:45 pm    Post subject: Re: Farmall m head Reply to specific post Reply with quote


While getting the head done you could even find out that the valves are recessed due to previous valve jobs. They will be able to put in oversized valves which will bring the valve surface back out and increase your compression.
 
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randy hall
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PostPosted: Fri Jun 14, 2019 8:03 am    Post subject: Re: Farmall m head Reply to specific post Reply with quote

sell it and buy an lp head.
 
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Farmallhm44
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PostPosted: Fri Jun 14, 2019 3:23 pm    Post subject: Re: Farmall m head Reply to specific post Reply with quote

Thanks everyone.
 
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rustred
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PostPosted: Fri Jun 14, 2019 7:07 pm    Post subject: Re: Farmall m head Reply to specific post Reply with quote

they are not oversized valves they are the standard valves . with new valves and seats the valves are sitting higher in the combustion chamber,every time a seat and valve is ground it puts it lower in the seat. you do not want this.
 
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showcrop
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PostPosted: Sat Jun 15, 2019 3:44 am    Post subject: Re: Farmall m head Reply to specific post Reply with quote

CVPost-rustred wrote:
(quoted from post at 20:07:27 06/14/19) they are not oversized valves they are the standard valves . with new valves and seats the valves are sitting higher in the combustion chamber,every time a seat and valve is ground it puts it lower in the seat. you do not want this.


Yes rustred, that is exactly what I said.
 
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Dblair
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PostPosted: Sat Jun 15, 2019 6:46 pm    Post subject: Re: Farmall m head Reply to specific post Reply with quote

do what Randy said , but don't spend any money on a useless head for pulling
 
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Farmallhm44
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PostPosted: Sun Jun 16, 2019 2:19 pm    Post subject: Re: Farmall m head Reply to specific post Reply with quote

If I were to switch to an lp head is there any issue with using stepped pistons?
 
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Dblair
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PostPosted: Thu Jun 20, 2019 1:48 pm    Post subject: Re: Farmall m head Reply to specific post Reply with quote

unless they're real tall they will work with 110 octane , sit it up there with no bolts and see if it clears .
 
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