fastfarmall
Well-known Member
As long as your talking about boring, how much can you bore a H block ?
- Thread starter fastfarmall
- Start date
Gary Mitchell
Well-known Member
I had a guy bore a ruined H block for me and he went through the wall at about 3 7/8". He did some measuring and thought 300 and 350 blocks were a little thicker in the walls. We bored a 300 block to 3 7/8s and hard filled the block almost to the top, ran 3 7/8s pistons and never had a problem. Years past I know the SH had to be bored to whatever the OD of the 3 5/8s Fire Craters sized at to accommodate them. Someone here will know what that is. gm
Janicholson
Well-known Member
Core placement in IH engines was pretty good, not perfect. Thus the intention was to make a support and coolant heat transfer thickness for the sleeve. It is difficult without special lab equipment and expense, to determine the existing thickness at any point around 4 cylinders. Finding water is good when drilling wells. One way to do it is to bore them out to a size that causes most of them to go through the wall, then sleeve the block and bore the sleeve to your intended size. Good luck, and remember the goal of having fun. Jim
the tractor vet
Well-known Member
One nevber really knows for sure , sonic testing helps some I did one H that we went to the 806 gas pistons and went the max of .060 over bore and got away with it , will this happen every time ?? don't know . We have bored into the water jackets and custom sleeved them and got away with it for the sake of winning that prized trophy and bragging wrights at the coffee shops . We have installed Cummins 855 sleeves , Mack 673 sleeves , used Allison pistons . GMC pistons . Farmall rods in a MM . Welded sleeves in . There has been a lot of Hold my beer and watch this . The object of this game is to build one to WORK and not make lots of spare pieces and parts . Ya need a Machinist that is a crazy as you are and not afraid of getting into the water jacket then finding a sleeve that will work. When one starts down the dark path one needs a bottomless piggy bank and the will to go where no man has gone before.
fastfarmall
Well-known Member
Then 3.5 inch shouldn't be a problem, thanks for all good answer's and witt!
Similar threads
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.
Copyright © 1997-2024 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy