8070 8.3 is done. I hope!
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=138119
Printed Date: 28 Dec 2025 at 11:43am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 8070 8.3 is done. I hope!
Posted By: randy
Subject: 8070 8.3 is done. I hope!
Date Posted: 05 May 2017 at 5:26pm
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Finished the 8.3 conversion! Thanks to Ed and all the others that gave me advice and help! Nice running and pulling tractor. Randy  ------------- CA WD WD45 D17 D17 Diesel 7060 8050 8070 |
Replies:
Posted By: Mikez
Date Posted: 05 May 2017 at 6:04pm
| Awesome have any more pictures |
Posted By: WD45
Date Posted: 05 May 2017 at 6:40pm
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That will be some tractor with 8.3. ------------- Fred Dunlop, G,B,CA, WC,WF, 3 WD45`s,gas, diesel and LP,U,D10 series III, D12,D14,D15 SERIES II,D17 Series IV in Gas and Diesel ,D19 GAS and D21,170 185,210 ,220 an I-600 8070 fwd, 716H and 1920H |
Posted By: Unit3
Date Posted: 05 May 2017 at 9:54pm
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If I did it right 350ci/5.7L=61.4ci*8.3L=509ci That should do right nice. I also see the starter on the same side as the batteries. I like that. Great job. ------------- 2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C |
Posted By: TREVMAN
Date Posted: 05 May 2017 at 10:07pm
| 8.3L = 505 cid Litre = 61.1 cubes. Easy 175 pto out of 8.3. Trev. |
Posted By: JohnCO
Date Posted: 05 May 2017 at 10:43pm
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Beautiful! Any idea how many hours in the job?
------------- "If at first you don't succeed, get a bigger hammer" Allis Express participant |
Posted By: shameless dude
Date Posted: 06 May 2017 at 2:03am
| looks good! hope it works o-k for you, it should! |
Posted By: randy
Date Posted: 06 May 2017 at 6:55am
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Hours, too many to count! If I had started with a good engine, had a adapter plate, flywheel and all the other odds and ends, so it was putting it in it wouldnt be too bad. I did a total rebuild of the engine, bought the flywheel and adapter plate, and adapted or made a lot of brackets, motor mounts, alternator and other things. Lots of trial and error. The second one would be much quicker. It fit like it was made for it. I will get more pictures today. Ed at heritage diesel did the pump work and his buddy Rob were a big help! Got about 60 hours on it so far, so good! ------------- CA WD WD45 D17 D17 Diesel 7060 8050 8070 |
Posted By: randy
Date Posted: 06 May 2017 at 12:20pm
     More pics.  ------------- CA WD WD45 D17 D17 Diesel 7060 8050 8070 |
Posted By: Sagefarmer
Date Posted: 06 May 2017 at 3:51pm
| Nice job, Gets me inspired. I know where one is sitting that has a cummins in it already. Farmer ran it hot, drove it home and parked it. I just have not been brave enough to ask what he will take for it. I don't need another project right now ,lol. Post all the pic you have. |
Posted By: Michael V (NM)
Date Posted: 06 May 2017 at 9:50pm
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looks great, just looks like that cummins ought to been there in the first place,, not knockin the 426...I think the higher HP tractors sure needed a updated engine... I jus think the 8000 series were a really good machine,,,,way ahead of their time and economy of the early 80's |
Posted By: TREVMAN
Date Posted: 07 May 2017 at 11:43am
| You did a very good job, you should be proud. It always amazes me what people can do. Trev. |
Posted By: Ron(AB)
Date Posted: 07 May 2017 at 1:34pm
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Is there a muffler? Or did you go a size bigger on the stack above the hood? |
Posted By: randy
Date Posted: 08 May 2017 at 6:58am
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No muffler, its a standard Allis exhaust pipe with a chrome pipe over it. Got both pipes from Thorume, in East Prairie Mo. I havent got an asperator on it yet, maybe later. ------------- CA WD WD45 D17 D17 Diesel 7060 8050 8070 |
Posted By: orangeman69
Date Posted: 21 May 2017 at 3:59pm
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Would recommend some sort of heat shield next to the turbo, We've had it burn the paint off the side panel! ------------- d17,d17nfpuller,d-17IVdiesel,d19gas,d19diesel nf,d21seriesII,180,190xtseries III,200,210,7020,7060,7080w/8.3cummins,8070fwa w/8.3cummins,8550 185 w/322 original hrs. |