Pulling Forum - finally building the D17

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finally building the D17

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=212576
Printed Date: 21 Oct 2026 at 10:58pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: finally building the D17

Posted By: D17Dave
Subject: finally building the D17
Date Posted: 21 Oct 2026 at 9:48pm

I've finally got to where i can start building my D17 puller and i wanted to ask again what the thoughts would be on the general idea.

M code engine, bored to 4.375 w/ case 1150 sleeves and pistons

grinding the crank to 2" (half because the crank i have had a spun bearing, half for the stroke)

i haven't het figured what i need for the connecting rods as they're going to need to be custom with the 1.5" piston pin and 2" crank journal- ideally id like to get as close to the head as i can, id like to achieve 12-14:1.

I'm planning on larger valves but on not yet sure how much oversized i can go.

i already have a tall head for better ignition

i haven't yet figured out my cam but im planning on working the gov to get 2k rpm and id like peak power between 1600 and 2k

im working on getting the finals and axles out of a 180. they will need some work to fit in a d17 but that work can all be done in house

where does everyone think im lacking or need to do more research on.

a question to those who have bored one of these engines.

what kind of issues do you run into with the sleeves already being past the main bearings? i was looking at mine and its cast into the block to have room for the sleeves to already be recessed into the sides of the block on the far sides of cylinder 1 and 2.