6.2-6.5 Navistar or IH?

Posted by jdemaris on September 26, 2006 at 07:29:30 from (66.218.11.75):

In Reply to: Re: 6.5T smokes posted by Joe-Bob/IN on September 25, 2006 at 18:17:27:

It's not an issue of "who told me", the engines from IH are commonly available many places. I haven't shopped around much, but it seems the common retail price is $6000 for a International - blocked 6.5 diesel long-block, and $10,000 for a complete drop-in engine.
As to the name of the comany - be it International, Navistar, etc. - technically - at the moment - I believe the company is INTERNATIONAL TRUCK AND ENGINE CORPORATION. IH has played so many games with names, I've lost track. In 86, IH was almost bankrupt - so as a marketing scheme, they created the new name of NAVISTAR. At that time, a company spokesman stated that the name was computer-generated and showed the company was "navigating to the stars, to a rosy future." Jeez - sounds like they were all stoned on something. Kind of reminds me when Datsun mulled over the idea of using the name Nissan in the U.S. and named their new sports car the "My Fair Lady" - which did not go over very well. So, the "Fair Lady" was quickly changed to "240Z" which was much more appealing to people in the U.S.
Anway - back to I.H. From what I've seen and read - they went from INTERNATIONAL HARVESTER COMPANY to NAVISTAR in 86. In 87 called themselves NAVISTAR INTERNATIONAL CORPORATION. In 2000 - NAVISTAR INTERNATIONAL TRANSPORTATION CORP. And now? The company making the 6.5 blocks and the engines for Ford, et. al is INTERNATIONAL TRUCK AND ENGINE CORPORATION.
About the 6.2s and 6.5s - I don't know all the facts and figures - and I'm not sure anyone does. But - generally speaking - the original engine was designed from the ground-up by Detroit Diesel Corp. The first model year of use - in 1982 - the blocks were thick castings and high nickel content. In 83, the blocks remained thick but the high-nickel content was dropped except for some military orders. In 93 - the bore was increased slightly and the 6.2 became a 6.5 - still with a thick block. In 94 - the 6.5 block got cheapened - by making lighter and thinner. After that there were cracking issues.
6.2s and 6.5s sometimes - usually with high miles - blow apart - with the end result being a broken crank and broken main-bearing webs in the block. I've heard many arguments about which happens first and why (crank or block). Some claim it's fatigue due to a worn harmonic balancer. When my crank broke at 500K - my balancer was fine. I will assume the issues are due to metal fatique, and subsequently, a higher-nickel block is probably less apt to break.
The new blocks being cast by International are thick casting and high-nickel. Sounds good, but the price tag ??
I've met a few people with blown 6.5s, that installed a replacement 6.2 and were very happy with it. A NA 6.2 has a higher compression ratio than a turbo 6.5 - so boost should not exceed 10 PSI if using a 6.2. But other than that -they seem to work fine. A person could easily find a less than 100K 6.2 engine for a couple of hundred dollars and it's a bolt-in replacement for many 6.5s. Except off course, if you got all the computer garbage to deal with.

Replies:

Add a Reply Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

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 ]