Posted by jdemaris on March 08, 2014 at 06:10:12 from (70.194.8.71):
In Reply to: 6.5 or 7.3 posted by blue924.9 on March 07, 2014 at 17:27:35:
The 7.3 IDI is a much heavier built engine then any GM made 6.5. The newest 6.5s made for the military have been beefed up quite a bit but that doesn't count.
7.3 has a forged-steel crank, all gear-drive in front, heavy cylinder heads with hardened valve- seat inserts, heavy block, etc.
6.5 has a cast-iron crank, chain drive in front, light cylinder heads that WILL crack when the ports get hot, a light block that will crack at the main-bearing webs after X amount of miles, etc. There is no way to fix the main-web cracking problem. GM tried with later 6.5s by making the outside main-cap-bolts smaller thus leaving more block metal. It helped but did not fix the problem. I would not trust any 6.2 or 6.5 for long-distance travel unless the oil-pan got pulled and the main webs got checked for cracks. Once they show - it's ticking time-bomb. Often around the 200K mile mark.
I still have my 1994 IDI turbo 7.3. 350,000 miles on it and the engine has never been apart. 4WD, extended cab, long-bed, 4.10 axles, E40D trans. Gets 17-18 MPG empty on highway in the flatlands of Michigan. Gets 16 MPG in hilly New York.
I've also got many 6.2s and 6.5s. Running and blown-up with broken cranks and blocks. I like them because they've always been easy to buy cheap.
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. [ About Us ]
Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
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.