Construction and other equipment - HD-344 with 6000 Head

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HD-344 with 6000 Head

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=57917
Printed Date: 25 Jun 2025 at 5:04pm
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Topic: HD-344 with 6000 Head

Posted By: orangeman
Subject: HD-344 with 6000 Head
Date Posted: 06 Oct 2012 at 10:27am

Guys: If the head is shot on an HD-344 can you bolt up the 6000 head and make it work with some minor plumbing changes? I am thinking since the 6000 head has the pintles in the top that the fuel lines would need to be rerouted.

My HD-344 head has a lot of erosion in the combustion chamber indicated consumption of water at some point. Not sure it is worth it to pursue welding and replaning the old 344 head.

Comments appreciated...Thank-you Orangeman

Replies:

Posted By: gemdozer
Date Posted: 06 Oct 2012 at 11:40am

I am't sure but you need to change the pistons, plumbing and more

Posted By: Ian Beale
Date Posted: 06 Oct 2012 at 4:27pm

FWIW

The later pistons have bowl type combustion chambers (2 types), and I think there are 2 types of injector nozzles for these. Check, e.g., the Endurance catalogue. Injector pipes are different, and things like water manifolds might also be, going on the differences between ADS 516 and 10000 engines.

Posted By: Dozer
Date Posted: 08 Oct 2012 at 7:29am

The connecting rods are different also. The wrist pin on the dished pistons is larger. My 6000 motor has deep dished pistons. I was told the dish design was to change the exhaust smoke. Does any one know if the deep or shallow dish had the cleaner exhaust?