I was actually only thinking of the cummins 8.3/5.9 and the dt466 which I thought was 7.3. Maybe it is 7.6l I cant remember.

Someone was telling me that I better get a twin countershaft transmission because nothing else will last behind a modded dt466 or cummins 8.3. I love the cummins engines but in regards to money it seams like I can find the dt466's for cheaper than the 8.3.

I was looking at getting a Fuller 7206a tranny or something simila,r with a Spice N 175 or N190 for the rear end. I wanted to get rid of the Eaton 2 speed diff so I was already thinking heavy duty just for fun. Now that I am thinking of a bigger engine the rear I think would still be fine.

Not sure on the tranny but someone mentioned before because the truck will be fairly light for this huge engine I wont need quite the torque capacity in the tranny due to tire spin. So maybe the Fuller would be fine also.

 

Just be careful, the shockload of a tire spinning with 1500 pounds of tork is gonna spew metal stuff.

 

I am pretty sure the 7 designation for the Fuller tranny means 700ft/lbs it can handle so I will have to ask a friend who knows alot more than me what tranny he thinks would work for double what it can do.

Not wanting to buy a twin countershaft but if I have to because I want to "have fun," then I will just see what they cost. But from the short month of looking it appears that the twins are about double the price.

 

I am thinking that the Spicer N175a should be enough of a rearend for the dt466???.

It came with the International 4700 trucks that also had the dt466. Not the same hp rating I want but they are very stout rearends.

 

I would think it would hold up better than an OEM one from the 50s, plus have more gearing options. A Detroit locker would sure be nice too. We have a few IH trucks with the Detroit, wow what a difference off road.

 

I am a commercial transport mechanic and we built this 1968 Kenworth hook lift truck for a customer.

Right now the truck has a pretty much stock DT360 and 4 speed allison. But for the last few months we have been bulding a DT466 that is going to be put into the truck along with a 6 speed allison transmission. The engine is all together and ready to go into the truck but we are waiting till the winter to tear the truck apart for the motor swap.

We used a 93 DT466. We got ahold of hypermax and got one of their packages to build the motor up to approx. 700HP. The motor has been bored out to 540 ci. It is going to have a single turbo on it. I cannot remember what the turbo is but this thing is huge. We also bought a tuned P-pump from them and we had it hooked up to a test machine after we got it from hypermax and it flows a huge amount of fuel.

It is going to be really exciting to finally get the engine in the truck and take it for a drive.

 

WOW! that sounds absolutely wonderful! Be sure to share some pix and driving reviews after it's in.

 

Yah what he said!!!!

What rear end are you guys using?

 

yes, what rears will hold up to 500HP behind a DT466, and what has to be done to bring a DT466 to the 500HP mark?i'm building a long bed 4 door 1971 International "Travelette" pickup that i'm going to swap a 466 in.

-Jon

 

Bigger is better with axles behind a high powered diesel. You can have a Rockwell from a med duty truck narrowed to fit your T'ette. That's actually one of my favorite rigs ever. Quite simple to get 500hp. Slightly bigger than stock injectors, a bit of work to the pump, bigger turbo or 2, and the rest depends on your rpm limit. If you want 3k rpm, then there's nothing else to do. If you want more(3k-4500), then you'll need HD rod bolts, and stiffer valve springs. No need for head & main studs at that power level.
Be prepared! Them things are really big, and it's even hard to fit one in a Super Duty, let alone a short IH hood. Go look with a tape measure, the head itself is 41" long.

 

thanks for the quick reply! i was hoping a Dana 70 rear and a built Dana 60 front would hold up, i don't plan on running bigger than 33" tires, i want it to appear "stock". also was thinking of a NP205 t-case. i'm looking to build a reliable driver and kick *** sled puller (send those cummins boys home crying). i don't want crazy power, but enough to move the sled through the gate. i'm not too much worried about how long the engine is, i'm not afraid of some firewall trimming. i figure a 2" body lift too.

-Jon

 

I have chatted with many other people and having a D70 would probably deteriorate quickly. I looked at using many different rearends in my ever so slow project and it all seem to be mainly dependent on the weight of the vehicle.

I cant remember your vehicle off the top of my head but I would think 70s wouldn't cut it.

I am on many different forums and to smack the cummins boys you would need more HP. And you would be in another class anyways.

1000hp isn't hard from what others have told me so I would only use this engine if you wanted BIG reliable HP as a goal.

Anything under around 6-800 can be reliable from small block diesels. Just a matter of driving style also.

Either way good to see this thread isn't dead.

I am still a long way off from my project but four children does that.

 

The way I look at it is if I'm making all that power, in a pickup truck ill never be able to get it all to the ground so why get too carried away?

-Jon

 

Well to each his own. The smaller diesels would work and easily fit. 500hp would be easy for them also.

But either way. I hope to see your build. You would probably get is started before mine.

 

You could also use a DT360, it would be a much better fit. That way, at least you may be able to get around a rule or 2 with the engine size. Most of the time the rule states it needed to be a factory offered engine in a pickup. The 466 is a great engine, but the 360 is a more practical swap. Either way, for a sled pull, you'd want the most rpm the rules will allow. At the end of the pull is where it'll see the intense loads, and where you'd most likely find out the weak link.