24Vford

what is the diffrence of these motors i am curious if a p-pumped 24V 8.3 can be built and be motofied like a 5.9 or if the 5.9 is better to stick with

CNeubauer

From a performance standpoint I'd stick with the 5.9 because there isn't nearly as much aftermarket stuff for the 8.3 and I think it would be way too big/heavy to work in a pickup. If you need more displacement than the 5.9 will offer something like the IH DT-466 would offer alot more performance upgrades than the 8.3 and would be alot cheaper to build.

RAMRODD

I have never seen a 8.3 24 valve P-Pump engine before.

24Vford

i thought they were just a larger 5.9 i thought maybe you could apply the same things we have learned with the 5.9 and apply them to the 8.3

blackdiesel

the weight would make it not worth it IMO. They might be alright in a pickup, but in the larger trucks they are dogs. (IMHO!!! if you dont agree, say so but dont bash me!)

a 5.9 can be made to handle 700 hp daily, why in the world would you want more than that?

96_12V

Entirely different block, design, and intended application. Older units did use the same P-7100 pump as used on the '94 - '98 12-valve Intercooled Engines in our trucks. This works out to be a benefit for the 5.9's as it's an overbuilt pump that's just about indestructable on a 5.9L engine.

Probably not worth it overall for a pickup -- too much weight, too little to gain.

nevrenufhp

But it would be a very loud statement, seeing an 8.3 under the hood of some pickup. If you want all out power with huge cubes, a DT466 will do it. They can wind up like the 6BT(when properly equipped), and have a loyal following in the tractor puller scene.

CNeubauer

Also the 8.3s don't like high rpms very well. Case IH used them in combines at 2,600 rpm for a couple of years and they didn't hold up very well but when they backed them down to 2,200 rpm they tripled their life expectancy.

2rowdy

Case IH is still using them in tractors nearly bullet proof.

24Vford

how many 500hp+ 5.9s are out there hauling 26000+ everyday i wouldnt think there are too many but if you took a 8.3 and had it pushing 500hp i would think it would last alot longer
is the head much diffrent as far as valve train frm the 5.9 24V

logskidder

The 8.3 looks just like a 5.9 only bigger, and it uses one long valve cover instead of 6. The shipping weight on a 5.9 is 1100 lbs and 1500 lbs for the 8.3. The 8.3 is about 6" (from front cover to back of block)longer, 4" wider and 4" (from oil pan mounting surface to the top of the valve cover)higher. If someone could come up with a good head gasket, honed injectors, twins and pump work (these are 13mm pumps) I think you could see some really big HP.

24Vford

i think they could make some decent hp and be really reliable is their a 24V model

logskidder

The ISC is a 24v........your better off thinking about a 12v with a p7100. The ISC needs alot of input to make it run correctly, and the computer limits big power gains....however I think TS or Pittsburgh Power may make a box for them.

manureman

I had two Case IH MX270 tractors that had 8.3 ISC engines in them. They had a ton of torque, but horsepower was only 300 at the PTO (proabably 350 at the flywheel). The ISC block is a little different than the 5.9. Instead of "cst-in" liners, it used "mid-stop" replaseable cylinder liners. This was a nice feature when overhauling, however the dreaded "liner cavitation" problem is always there, and you had to make sure your coolant always had a full charge of additives in it. Also, the ISC uses a Cummins CAPS fuel injection pump. This was actually a pretty good pump, fairly simple, and reliable. However, it is expensive to get parts for, and unlike most bosch units, there just isn't as many out there. Some pump shops aren;t really even set up to work on them. They are also electronic. To convert an ISC to a P pump you would need all the front endparts for a 12 valve C series. It would probably be pretty expensive too!

logskidder

I dont think you would ever find injector lines.