Farm Equipment - 7020 Replacement Engine w/o intercooler

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7020 Replacement Engine w/o intercooler

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=184222
Printed Date: 20 May 2025 at 6:55pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7020 Replacement Engine w/o intercooler

Posted By: nowaktj
Subject: 7020 Replacement Engine w/o intercooler
Date Posted: 28 Oct 2021 at 7:16am

Hi guys-My 7020 needs a new engine and a person has a 1800 hr non-intercooled 301 available. This engine is probably out of a combine.

How hard is it to move the intercooler parts from my tractor over to the non-intercooled engine?

Please let me know your thoughts...thanks.

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D19D, D17D, WD, WC, Snobee, #83 Plow, SC Blade, 14' disk, 400 series planter, B , Terra Tiger, M Dozer w/Baker Blade, TL-12, 42S Grader, G

Replies:

Posted By: DrAllis
Date Posted: 28 Oct 2021 at 7:25am

What engine are you trying to buy?? In order to be even close to what you want to do, it needs to be 130 HP with a DM-4 injection pump from a 1977 or newer M2/L2 combine. Anything else is just a 301 and will be a lot more work.

Posted By: Hurst
Date Posted: 28 Oct 2021 at 8:22am

301's are not the most expensive engines, nor complicated, to rebuild. Unless the combine engine is super low hours and dirt cheap, it's hard to justify a swap. Probably half the labor of the rebuild is just getting the engine out and stripped and accessories reassembed. If the lower bores are eaten up, they can be bored and sleeved.

Hurst

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1979 Allis Chalmers 7000
5800 Hours