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Farmall & IHC Tractors Discussion Forum
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Ideal M farmstock puller

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LRP

01-13-2004 15:01:00




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I'm a MM farmstock puller. I very close friend of mine has decided to build a Farmall M farmstock puller. He's purchased a 450 gas engine which we've torn down. After removing the sleaves and doing some measuring it appears that one can bore it out to 4.5 and put in 454 pistons and easily stroke it to 6". I really don't want to reinvent the wheel. Can someone please give me some advise as to what can be done. I don't want an engine that is on the edge so that he is constantly worried about it hatching but one that will produce a solid 105-110hp at the pto and at standard rpm.

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IH400

01-14-2004 16:08:38




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 Re: Ideal M farmstock puller in reply to LRP, 01-13-2004 15:01:00  
I have a 400 that has only 350 CID and it seems to do very well in the 6000 thru 7500 class. It will pull 2nd gear most times although on a good track it will sometimes choke in 7500. It has 4.31 bore ( with sleeves ) and 6" stroke. The 4.31 bore is a Chevy 454 ( 60 thousandths over ). I am running 16.9's x 38's. Like some others said on here, there are many combinations. My advice would be pick the most affordable to get the most bang for your dollar. Hope this helps....

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ChadS

01-13-2004 19:06:10




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 Re: Ideal M farmstock puller in reply to LRP, 01-13-2004 15:01:00  
A good friend of mine,, Ohio M puller, has a good recipe for a M engine. that consists of 4.25 bore, and 6 in or 6.25 stroke. Send him an email,, he may discuss this with you further. A 450 block is capable of 4.5 bore,, just pull out the sleeves, and bore it out. Also,, a 4-3/8 bore with a 7 inch stroke, using H rods, and Chrysler 400 pistons will make that kind of HP, easily. The smaller bore will be better,, more block the run on. There are so many cubic inch recipes to consider,, pick a cubic inch,, Would be happy to profile it for you, and help you with a parts list and machine, and clearence work to get it going!! Chad

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farmallgod

01-13-2004 17:09:11




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 Re: Ideal M farmstock puller in reply to LRP, 01-13-2004 15:01:00  
I noticed you said "farm stock" what you are talking about is nowhere near farm stock



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supermpuller4

01-13-2004 18:13:41




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 Re: Re: Ideal M farmstock puller in reply to farmallgod, 01-13-2004 17:09:11  
There is no such thing as stock anymore, don't take a knive to a gun fight.



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Buzzman72

01-14-2004 08:29:41




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 Re: Re: Re: Ideal M farmstock puller in reply to supermpuller4, 01-13-2004 18:13:41  
I'm with supermpuller4..."stock" never WAS stock; if you replaced the factory flat-top pistons with hi-altitude or fire-crater pistons, was it still stock? It depended on who you asked. If you ran a set of M & W pistons, was it still stock? Maybe...if you couldn't see any external evidence of modification. All along, the deifnition of "stock" has been subject to interpretation; what some would call stock, others would call "cheatin'"...especially if they didn't think of it first! So, unless you want to tear down every engine to inspect for non-original parts, you have to accept some "cheatin'" is gonna happen, and just set up some rules to deal with it. That is why they have different classes and divisions, in pulling as well as in auto racing. If "stock" was the same as "farm stock," why would they need to be separate classes, as they are at some pulls?

That horse has been out of the barn a long time, buckaroo; I don't think you're gonna round him up here and now. But that's just MY opinion.

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AC

01-14-2004 08:33:13




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 Re: Re: Re: Re: Ideal M farmstock puller in reply to Buzzman72, 01-14-2004 08:29:41  
Yeah, look at NASCAR, those are called STOCK cars



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Jed

01-13-2004 15:57:41




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 Re: Ideal M farmstock puller in reply to LRP, 01-13-2004 15:01:00  
I have pulled an M for years. It has a 4 1/8" bore. It also has the slow 1st gear. We shaved a half inch off of the head. Pistons don't hit the plugs. It is close though. I have tried 16.9 & 18.4 tires. I don't have a lot of money in it and it has beaten some of the local large CI engines.
You can have all the power in the world if you can't put it on the track, you aren't going to pull well. It is a lesson in weight placement and your hitching point. Good Luck.

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