Farm Equipment - Switching engines between 185 and 200

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Switching engines between 185 and 200

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=39750
Printed Date: 08 Oct 2025 at 1:07am
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Topic: Switching engines between 185 and 200

Posted By: KevinON
Subject: Switching engines between 185 and 200
Date Posted: 30 Oct 2011 at 7:36am

Are there any issues in switching motors from a 185 to a 200 as long as you add all of the external components of the 200 to the 185 block? Thanks!

Replies:

Posted By: injpumpEd
Date Posted: 30 Oct 2011 at 8:42am

only thing I can think of is 200 had crank driven oil pump, as did later 185's. so if 185 is early, I'm not sure how well 200 pan fits in 185 chassis. DR will chime in and set us all straight.

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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!

Posted By: MACK
Date Posted: 30 Oct 2011 at 8:48am

From 185 to 200 will be no problem. If it was 200 into 180 the wish bone would be a problem but you should ok.

The only thing will be air cleaner pipe if you don't turbo it. MACK

Posted By: KevinON
Date Posted: 30 Oct 2011 at 9:02am

I was thinking of taking an 185 with poor rear end and putting its motor into a 200 with a bad engine. I think that my 185 is a 1977 without checking the serial number.

Posted By: WD45
Date Posted: 30 Oct 2011 at 9:28am

Kevin - our 185 is turboed.

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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