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426 early vers late engines?

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=133968
Printed Date: 05 Nov 2025 at 12:19pm
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Topic: 426 early vers late engines?
Posted By: nickia
Subject: 426 early vers late engines?
Date Posted: 18 Jan 2017 at 8:35pm
i was offered an engine that has a spun bearing with lots of hrs on the engine  "7030" any ways shortly before he spun the bearing he had head issues and replaced the head with a new or refurbushed head.  ok my question is i have a 7045 which is a black belly as a project tractor which will need the head gone thru my question is there any head updates between the early vers late 426 engines that would make it a bad idea to swap heads?



Replies:
Posted By: tbran
Date Posted: 18 Jan 2017 at 8:37pm
no difference



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When told "it's not the money,it's the principle", remember, it's always the money..


Posted By: nickia
Date Posted: 18 Jan 2017 at 8:50pm
really thanks




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