7020 Questions
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=55439
Printed Date: 17 Aug 2025 at 11:33pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 7020 Questions
Posted By: Orange Blood
Subject: 7020 Questions
Date Posted: 17 Aug 2012 at 10:31pm
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Hey guys, I am looking at buying a 7020 with a rod hanging out of the block. I have zero experiance with this model, all my 7000 series experiance is with the 7030 and above. How hard is it to find a block for these. Is the 301 block the same casting as used in the 190s? 7000s? 7010s? Others? If there are differences what are they? Thanks, Anthony
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Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
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Replies:
Posted By: Hurst
Date Posted: 17 Aug 2012 at 10:39pm
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7020 will have a 649I block, which should be the same as the 649T. That means a 7010 block will work. The biggest thing is the piston oil squirters. One thing, however, is that my 2900 MKII block in my 7000 black belly (79 model) had the oil squirters machined into the block, but had main bearings without the slot/groove to feed the oil squirters. You also need a block with a crank driven oil pump. I'm not sure what other difference in just the block there are after that.
Hurst
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1979 Allis Chalmers 7000
5800 Hours
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