M123/M125's TH844 / V-300 to VT370M conversion . . .

The TH884 LeRoi Gas V-8 297hp@2,600rpm & ???TQ@????RPM.

The V-300 Cummins is a 785Ci V-8 NA diesel makes 300hp@3,000rpm & 900tq@2,000rpm.

The VT370M Cummins is a 785Ci V-8 Turbo charged diesel makes 375hp@2,800rpm & 1150tq@1,600rpm.

What I want to do is interchange them, which i think should be some what easy as they are the same engine.

The 370 is a turbo charged version of the 300, neither of which have anything to do with the 300hp V903 Cummins.


any known issues with interchanging the 2 engines ?

Mike

If the motor dimentions are the same, the motor mounts should be the same, so it 'should' bolt right it in. Is there something specific your concerned about?

Turbo charger placement, i am not sure how the Turbo is mounted nor how it is plumbed into the system.

Plus i want to make sure they are interchangeable before entering into such a project.

I really should be asking if the VT370 is interchangeably with the 844 LeRoi V-8 Gas engine, as there is a bed less M125 down the rad i could get i think for a deal . . .

Tho the 785 Cummins was used to repower the 844 LeRoi . . .

Mike

if you get the wiring harness and ecu for the new motor then everything else should be cake.. try to get a section of the downpipe on the new motor as well cause it will make fabing up the new exhuast sustem alot easier.. if the truck came with the new motor as an option then you should be able to find everything you need.. sounds like a fun project and i think youll be alright.. they are the same motor esentially beside the turbo and it can be mounted anywhere it will fit so i wouldnt worry to much about placement..

Je ne pense pas que vous vous heurterez à n'importe quelle question majeure avec les deux moteur gardent cependant juste dans votre avis le turbo verison sera peu de diffrent que le moteur standard fondé.

Le turbo sera au dos de la vallée de moteur donc vous devrez exécuter le nouveau pot d'échappement du turbo.

Comme loin pour votre système de refroidissement si votre moteur d'expiqûre ne vous a pas surchauffés devrait être ok avec cela mais avec le turbo verison vous peut vouloir observer l'eau tempture un peu plus tout près empêcher n'importe quelle question avec cela.

Pour tout le reste je suis assez sûr qu'il est le même.

Vous estimerez que le toqure viendra sur plus premier que non le turbo verison

I don't think you will run into any major issue with both engine however just keep in your mind the turbo verison will be little diffrent than standard engine set up.

The turbo will be at back of the engine valley so you will have to run the new exhaust pipe from the turbo.

As far for your cooling system if your exsting engine did not overheat you should be ok with it but with the turbo verison you may want to watch the water tempture little more closer to prevent any issue with it.

For everything else I am pretty sure it is the same.

You will feel the toqure will come on more early than non turbo verison

Merci,Marc

holy english batman.. lol. i didnt get a word of that..

So what about the 844 Leroi truck ? what if i end up buying the truck with the Gasser ?

T-H844 LeRoi ?

Mike

if you buy the truck with a gas motor its probley gonna take a little more fab skills. mainly just moving your engine and tranny mounts but it can be done.. i have stuffed a 454 into a 79 firebird only to take it back out and mount an ls1 motor out of a vette in the same day.. the tranny mount is the hard part. even if you are able to keep the same tranny you still have to worry about having to move it forward or back and get your driveline angle right.

I guess so man . . .

Mike

The truck of this subject . . .









Mike

holy crap... can i have them axles.. lol.. they would be industuctable under my jimmy.. lol

Holy huge! What are you going to be using that for Mike?

I don't really have a flat out use for it . . . per say i was just going to use it for fun and playing around . . .

Mike

What are ya talking about ??? It'll make a sweet grocery getter LOL LOL

It's a Mack


Mike

$/$-AMX wrote:

It's a Mack


Mike

MY POINT EXACTLY It's a Mack !!!! What's it not good for? Nothing. You can take your girl out dancing a couple of drinks then a movie.
Then the next day move a house down the road and up a hill with it.

Now you get it . . . I don't have single use for it, i'm going to do anything and everyhthing it'll allow me to do with it maybe attempt a few things i shouldn't LOL ;-) !

Mike

Well WI voted to BAN Military vehicles from the road road way's they can on be plated with Historic Military Vehicle plates and used for meets and parades . . .

So that shoot this in the tail, it also means my 53' Stude M275er is now only worth scrap to me . . .

Mike

Thats ridiculous!

$/$-AMX wrote:

The truck of this subject . . .









Mike

Hey Mike

Did you catch the Mar 13 episode of Extreme 4X4???
I only got the tail end of the show. but Ian had a truck Very similar to yours on the show.
And apparently it's gonna be on the show again next week

Cool !

Mike

WANT this would be so fun. i would use this to go to school everyday. that way when a jackass cuts me off i just go over 'em. haha i'll be on the evening news.