Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Tractor Pulling Discussion Forum

Big Farmall

Welcome Guest, Log in or Register
Author 
Donnie

01-19-2004 14:04:19




Report to Moderator

How much work does it take to make a "Big" Farmall M engine. I would start out with a 450 or 400 block. I would like a 7" or a 7 1/4 stroke. What combo works best. What pistons? Stock rods or made ones? How much clearance on the block and rod sides and cam shaft? I know about the lp head and big carb. Just wondering if a fellow could do it him self. Oh yeah what size would be best for the rod journals? I've done a 5/14" H motor. But this might be more taxing for a simple mind. Any help would be nice. Thanks. Donnie

[Log in to Reply]   [No Email]
farmall

01-21-2004 07:03:22




Report to Moderator
 Re: Big Farmall in reply to Donnie, 01-19-2004 14:04:19  
A 7.25 stroke is MAX for a stock rod. At this stroke the average puller would pull there hair out putting it in and give up. I have several of these out, and work verry well. As far as clearence goes, a good rule of thumb is .050 min.
also put flats on camshaft to clear rod. If you are trying to keep up with Lemmons, You will need more stroke. Their later motors are 7.75 to 8" stroke. Very strong and torquey. Good luck. But if it were me, I would opt for at least 600 cubes for div 4 classes
Hope this helps

[Log in to Reply]  [No Email]
Donnie

01-20-2004 07:55:30




Report to Moderator
 Re: Big Farmall in reply to Donnie, 01-19-2004 14:04:19  
Thanks for all the help. I now see why its always the same 4 or 5 people on here. Must not like outsiders. Donnie



[Log in to Reply]  [No Email]
Ohio M Puller

01-20-2004 08:52:21




Report to Moderator
 Re: Re: Big Farmall in reply to Donnie, 01-20-2004 07:55:30  
Donnie,

Here is part of your home work for you. A chysler 440 piston at 4.33 bore will work with a stock 450 rod (Pin Diameter the same) Stroke crank to 7.375 ( 7 3/8 ) will need to do ALOT of grinding but you are welcome for the FREE info this will make 434 cubes just cause I am sure will be wondering. Now go ahead and cut on everyone else on here cause they don't want to just hand out their motor dimensions. And no this is not what is in mine. Your welcome cause I am sure it will be to tuff to say thanks.....

Ohio M Puller

[Log in to Reply]  [No Email]
Flyin Farmall

01-20-2004 16:17:21




Report to Moderator
 Re: Re: Re: Big Farmall in reply to Ohio M Puller, 01-20-2004 08:52:21  
That stroke sounds kinda big for a stock rod??



[Log in to Reply]  [No Email]
Donnie

01-20-2004 09:27:54




Report to Moderator
 Re: Re: Re: Big Farmall in reply to Ohio M Puller, 01-20-2004 08:52:21  
First of all, thanks for the info. It is never TUFF to say thanks when you are being helped. THANK YOU. I was just wanting some ideas to what some of you fellas are running. That crank stroke sounds huge. Sounds like it sould have a lot of torque. I live in Central Ind and would have to run against some very tuff Rushville M's. Just like to do something so I won't keep dragging last place all the time. Kinda gets old. Thanks again for you help. It was very much appericated. Donnie

[Log in to Reply]  [No Email]
fergfarm

01-21-2004 15:43:54




Report to Moderator
 Re: Re: Re: Re: Big Farmall in reply to Donnie, 01-20-2004 09:27:54  
400 M WITH 6.250 STROKE,JUST A BACRYARD MECHANIC.WITH ALL THE GRINDING TO GET THIS,IF YOU ARE GOING TO PUT THAT MUCH WORK INTO GOING 7.0 WITH STOCK RODS YOU MIGHT AS WELL GO TO 4.5 BORE.HAD ROSS TO MAKE THE PISTONS FOR ABOUT PRICE AS STOCK SLEEVE ASSEMBLY.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy