Powerstroke Gasser?

[RussW1911]

Was the 7. 3 a gasser from the start? Or did it start out as a diesel engine from the start. Same with the GM engines.



Thanks

 

[RabidRam]

I've always been under the impression that the GM 6. 9 (is that right?) was a converted gasser. I think that International was the first to build the 7. 3 Powerstrokes, so chances are they were diesel from the start.



Everybody feel free to correct me. It wouldn't be the first (or last) time that I've been wrong.



Dave

 

[mcoleman]

Only the 5. 7 GM diesel was a gasser to start with both the the 6. 2 and 6. 5 engines were GMs poor attempts at making a diesel. The 7. 3 I think has always been a diesel even in other International applications.

 

[Dockboy]

Russ,



The 7. 3 is all diesel, not a converted gasser like the GM's of the 80's



International builds it, but Ford uses it's own PCM. The International version is the T444E which you will find in most school busses and a lot of the UPS and Fed-Ex trucks

 

[NPloysa]

The 6. 9 was Ford's first pickup diesel, in 1983, International made it for them. The 7. 3, N/A version, was esentially a 6. 9 with larger displacement, same engine pretty much.

 

[Rattlin_Ram]

yup, what NPloysa said.....



We had one of the '83 6. 9's on the farm. Not tons of power, but got good mileage and we ran it out to over 250k miles before my dad totaled it when an old lady turned in front of him.



1 transmission, 1 rear end, 1 transfer case, a fuel pump, couple alternators, a starter, and one head gasket (due to hired hand using either on it) where the problems we had in the 250k. And that truck pulled 5 to 600 bushel grain wagons every fall, which is probably one of the toughest things you can do with a truck, since they jerk you around so much while pulling.

 

[HEMI®Dart]

When looking at a torn apart 7. 3, one could easliy mistake its parts with gasoline heritage. Same could'nt be said for B5. 9.

 

[CChase]

The original 6. 9IDI, which the 7. 3IDI and the 7. 3PSD are derivitives of was based on a gas engine. I can't remember the model, but unlike the GM 350 diesel, it was retooled for diesel application. Not a gasser block with diesel heads thrown on it... . all the IHC/Ford diesel products to the 6 point oh no have been good engines. Not as stout or long lived as the Cummins, but still good engines.

 

[cumminspwr01]

I had heard somewhere that the 7. 3 used the same block as the 460 gassers did. Can anybody confirm one way or the other? just curious.

 

[Wayno]

This was talked about a while back here on the forms . Yall need to do a search to find it . I worked at a International Dealer and at a school District back in the day . I remember there was a big old gasser that look a lot like the 6. 9's and if I remember right back in the day there was a V8 International Diesel that was in the busses that look a lot like the 6. 9's in the 70's International busses and it wasn't nothing to wright home to mother about either but the DT 466 straight sixes were tuff in the busses .

 

[RussW1911]

Awesome info guys. We were haveing a conversation at work and I figured this would be the place to come for the answers. Thanks again!

 

[Will24]

The 9. 0 liter IH diesel was based on the 549 (I believe) gas engine, know that for fact. The smaller engines were basically designed from teh ground up as diesels even if they do have something in common with the gassers.





-Will

 

[KCJackson]

The Ford/Inernational 6. 9/7. 3 was based on the block of the old IH 446 gas V8, but was fully re-engineered as a diesel.



The current Ford/Intl 6. 0 is a clean-sheet diesel.



The GM 5. 7/350 V8 was based on the Oldsmobile 350 gas V8.



The GM 6. 2/6. 5 were clean sheet diesels.



The Duramax is based on an Isuzu design, but is pure diesel.

 

[Wayno]

Originally posted by KCJackson

old IH 446 gas V8

Thats what number I was trying to remember .

 

[Scot]

Originally posted by cumminspwr01

I had heard somewhere that the 7. 3 used the same block as the 460 gassers did. Can anybody confirm one way or the other? just curious.

The bellhousing pattern was the same on the Ford ones. That is it.

 

[n5ifi]

Got news for you Scott, the bellhousings are not the same as a 460. I agree they look simular but they arent the same. When I pulled the 6. 9 out of my old 87 4 door dually I was going to reuse the c-6 from the diesel on the 460. It's not the same. They do look alike though.



460 bellhousings fit in the 385 series engine catagory and that includes the 370,429 and in the 335 series engine the 351m and 400. All of these engines use the same bellhousing pattern.



The 6. 9 is a diesel engine and is really much stouter looking inside(crank,rods,ece. ect. ) than gas motors. It's not Cummins stout though.