Weight of a Big Al Engine ?
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=76226
Printed Date: 28 Jun 2025 at 10:38pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Weight of a Big Al Engine ?
Posted By: DougG
Subject: Weight of a Big Al Engine ?
Date Posted: 02 Sep 2013 at 5:47pm
| How much would an AC Big Al engine weigh? 25000 series diesel |
Replies:
Posted By: DonDittmar
Date Posted: 02 Sep 2013 at 5:52pm
|
Guessing 2500 give or take. That's what a 3406E CAT is roughly and that's 896 CAiD ------------- Experience is a fancy name for past mistakes. "Great moments are born from great opportunity" 1968 D15D,1962 D19D Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start |
Posted By: DougG
Date Posted: 02 Sep 2013 at 7:50pm
| Thanks |
Posted By: big al
Date Posted: 02 Sep 2013 at 8:06pm
| they put alot of iron in those engines-how about 3300 lbs. |
Posted By: DougG
Date Posted: 02 Sep 2013 at 9:06pm
| They are huge!!! |
Posted By: DougG
Date Posted: 06 Sep 2013 at 5:24am
| What was a match to the Big Al ? As in Cat, Cummins, or other brands of the day, thinking about clutch parts etc that may interchange |
Posted By: DrAllis
Date Posted: 06 Sep 2013 at 6:46am
| Cummins NTC/N14 was 855 cubes and AC was 844....to me, that's the same class size. |
Posted By: ctbowles58
Date Posted: 06 Sep 2013 at 10:25am
 Sorry but i don't think this gives the weight, but i thought you may get some info. from it.------------- 190XT 2WD45 WF D15 D14 CA BIG10 302 & 303 bailers 77G rake 80R mower 6 plows and alot more |
Posted By: HD6 Merv
Date Posted: 07 Sep 2013 at 1:21am
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Quite interesting info there; pity the purple powerhouse never took off; could have been ACs saviour. for comparison the yellow fellows 1693TA had specs as follows 425hp@2100. 1275ft/lb@1400. 893 cubes and 3335lb weight. Don't have bsfc but it would have been a lot more thirsty  ------------- tits tyres and tracks they all cost you money |
Posted By: DougG
Date Posted: 07 Sep 2013 at 3:25am
Just got a bunch of info on these beauties had a neat pic- see if this works
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Posted By: DougG
Date Posted: 07 Sep 2013 at 3:35am
Or this 
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Posted By: CAL(KS)
Date Posted: 07 Sep 2013 at 6:09am
 ------------- Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15 |
Posted By: Ian Beale
Date Posted: 11 Sep 2013 at 3:07am
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I have a neighbour who has a good collection of Allis parts. I mentioned these engines and he said "I've got a 25000 with aftercoolers but the turbo is gone" and he thinks it came off a genset.
Can we get a quick pedigree please?
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