Farm Equipment - 175 pistons in d17 gas?

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175 pistons in d17 gas?

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=36100
Printed Date: 07 Oct 2025 at 1:53pm
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Topic: 175 pistons in d17 gas?

Posted By: vyvyjim
Subject: 175 pistons in d17 gas?
Date Posted: 25 Aug 2011 at 6:53am

My series IV D17 needs an engine overhaul and I'd like to add horsepower. Could I just put in 175 pistions and get a 10 hp boost? Or is there more to it? What would be other reasonable ways to add horsepower in an overhaul?

Replies:

Posted By: Matt MN
Date Posted: 25 Aug 2011 at 8:01am

the 175 pistons do have a higher compression ratio which will help, also the 175 had a different camshaft and governor weights and spring which made more horsepower.

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Unless your are the lead horse the scenery never changes!!

Posted By: DrAllis
Date Posted: 25 Aug 2011 at 10:53am

Higher compression, and a different camshaft AND a different larger carburator......governor control raises rpm rated to 1800 instead of 1650.