Farm Equipment - Kit question

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Kit question

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=149812
Printed Date: 15 Sep 2025 at 2:26am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Kit question

Posted By: allispuller
Subject: Kit question
Date Posted: 24 Apr 2018 at 2:01pm

Called the local dealer for A&I products today about a rebuild kit for a D17 gas and found out they can get me one that they call a high compression kit. But they said it wasn’t any higher than a oem kit. My question is has anyone ever used it and what compression ratio might I be looking at since it’s listed for a wd45 D17 170 and 175

Replies:

Posted By: CAL(KS)
Date Posted: 24 Apr 2018 at 3:38pm

big difference between oem WD45 and oem 175

all the overbore kits that I know of are lower compression than the OEM 4" bore kits

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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: CTuckerNWIL
Date Posted: 24 Apr 2018 at 7:24pm

If I were in the market for an engine kit, I would go to somebody like Jim Danforth that can tell you what CR the kit is, and get you what you want.

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http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF

Posted By: WF owner
Date Posted: 25 Apr 2018 at 9:05am

There is a really good thread about 201 and 226 pistons in the knowledge base section. Here is the link:

http://www.allischalmers.com/forum/followup-on-wd-wd45-pistons_topic114979.html" rel="nofollow - http://www.allischalmers.com/forum/followup-on-wd-wd45-pistons_topic114979.html

Posted By: Dmpaul89
Date Posted: 25 Apr 2018 at 1:49pm

Powermax kits was the only one i could find with a high compression standard bore. But at the time they were out of stock (this was a while back) might want to check them out. All the agco kits are gone unless they ran a new batch in the last year.

Posted By: Allis dave
Date Posted: 25 Apr 2018 at 2:53pm

I would guess it's a 7.25:1 kit. Same as a D17.

Reliance/Powermax was the only guys making a true 8.25:1 175 kit. They don't have any more unless they made a new run between late last year and now. From past experience a year ago, it didn't sound like Reliance was interested in making another run