LX450 6BT/NV4500/Split Case Conversion

[JuliosLX450]

Yes Max, you're right. It is a 91.5. I compared it to my 93 and it's the same engine.
Cjmoon already stated the advantages of the 91.5 and newer vs the older ones. And Max you're right about cracked heads on the older ones due to the bigger injectors and thinner walls.

However if I was to do an other conversion, I'd go non-intercooled for the ease of the conversion and minimal parts required. At that point all you need is the Transfer Adapter and motor mounts.....and get the tach figured out.

The engine did crank over and I'm sure it would probably done.
However since I run it dry and it shut itself off, I would not risk using it.....there will definitely be damage to the seals and bearings and who k owe what else. To rebuild these things costs an arm and a leg.

 

[Dirty Koala]

Yes, a rebuild will cost you between $6k and $7k

 

[Wheelingnoob]

Thanks guys, trying to find a running truck to drive and make sure everything is solid. Then I can yank it for the cruiser.

 

[Dirty Koala]

Thanks guys, trying to find a running truck to drive and make sure everything is solid. Then I can yank it for the cruiser.

Sorry to hear about your issues with the isuzu. Can imagine the frustration you must be feeling. Good luck in the 6BT search. Try to find a 96-98.5 manual truck...You will get the 215hp P-Pump along with an NV4500. The setup I picked up was from a 1997 3500.

 

[maxamillion2345]

I think you'd amazed how tough the B series is.

Pull the pan and check bearings and then shine a light into the cylinders to see how they look, bore scope through the injector holes if need be.

I'm not trying to tell you not to proceed with another engine... just the B series is pretty resilient to abuse.

 

[Dirty Koala]

I think you'd amazed how tough the B series is.

Pull the pan and check bearings and then shine a light into the cylinders to see how they look, bore scope through the injector holes if need be.

I'm not trying to tell you not to proceed with another engine... just the B series is pretty resilient to abuse.

I think he has figured out what is wrong...sleeves have shifted.

 

[Wheelingnoob]

Sorry to hear about your issues with the isuzu. Can imagine the frustration you must be feeling. Good luck in the 6BT search. Try to find a 96-98.5 manual truck...You will get the 215hp P-Pump along with an NV4500. The setup I picked up was from a 1997 3500.

Yeah I hear that's is the one to get if you want to make power. I already have a Cummins nv4500 so I'm really only looking for the engine. I like that the 91.5-93's are a quieter engine with the rotary pump. I'm also not looking at cranking a lot of power out of it just a HX35 and a gov spring upgrade.

I do have a line on a 98 12v 4x4 club cab 5spd full running truck with a tilt flat bed. Just a bit out of my almost non existant budget.

I have a line on a 93 4x4 dually running driving for half of the 97 truck.

Thanks my journey has been intresting to say the least.

 

[Dirty Koala]

I don't think you will be interested, but I do have a completely dismantled 94 p-pump motor in my garage. Was planning on Rebuilding it myself once I run out of other projects.

 

[JuliosLX450]

This hobby of ours isnt a cheap one, that's for sure.
I will let you know if I see something pop up Jeremy.
Feel free to stop by if you wanna take a look and ask questions or simply BS.
I wish I would have had someone else's truck to look at before I started my conversion, it would have helped.

 

[Wheelingnoob]

This hobby of ours isnt a cheap one, that's for sure.
I will let you know if I see something pop up Jeremy.
Feel free to stop by if you wanna take a look and ask questions or simply BS.
I wish I would have had someone else's truck to look at before I started my conversion, it would have helped.

Yes I would love to do that! Seeing one in person is usually a huge help.

 

[maxamillion2345]

I think he has figured out what is wrong...sleeves have shifted.

Meant the cummins B series.

 

[JuliosLX450]

I think you'd amazed how tough the B series is.

Pull the pan and check bearings and then shine a light into the cylinders to see how they look, bore scope through the injector holes if need be.

I'm not trying to tell you not to proceed with another engine... just the B series is pretty resilient to abuse.

I hear what you're saying.
Cost and time wise, it's not worth it to me.

By the time I rebuild the VE Pump and replace the Oil Cooler and gaskets, the cost equals the amount I paid for the other engine.
However, I now own a plethora of spare parts which are not cheap and sometime not easy to get.

I appreciate the advice though!


@Wheelingnoob ill inbox you my number so we can figure out a day for you to stop by. I'm aiming to pull the engine this weekend.

 

[Dirty Koala]

Did you ever get the new motor swapped in?

 

[JuliosLX450]

Yes I did.
It's running great actually, I'm really happy with it. Feels better then the last one and no problems at all with the pump.
I was travelling for the winter and haven't put much mileage on the new (to me) engine, but I'm still getting great mileage out of it.

 

[JuliosLX450]

Finally I removed the Oil Cooler on the blown engine. Cleaned it up, sprayed some soapy water and pressurized it. This bad boy caused me an engine. It's a leaky bastard and that's where my oil was lost into the plenum.

I don't think there's much you can do about it other then:
If oil pressure drops and light comes on, stop your vehicle. At this point the oil would already have made it out through the radiator overflow, but if the vehicle is kept from running at least you won't kill the engine by running it dry.

At least I have a bunch of parts available to me should something go on my current engine ☺

 

[GLTHFJ60]

The cooler doesn't even look that rusty. Damn!!

 

[JuliosLX450]

On an other note.
With the help of a friend, I've got a few items checked off my never ending To-Do List:
1. Coolant leak fixed
2. Replaced Steering pump
3. Rebuilt Birfs, then broke 1, waiting for parts to rebuild again
4. Installed Smittybilt 15500 X20 Winch
(Will use the antenna switch for in cab control)
5. Installed OBA. Viair 450C compressor, 4 Gal pancake tank, quick connects Front/Rear/Engine Bay
(Still need a pressure gauge, an other 4 Gal tank and install a horn)
6. Triple batteries set-up

I still have a Crap-Ton to check off my list, but slowly I'll get there.

☺

 

[JuliosLX450]

The cooler doesn't even look that rusty. Damn!!

I was crossing my fingers that it was the gasket, but u fortunately it was the cooler itself. I've read that the gasket and/or cooler are a common thing to go.
Crappy but it is what it is.

 

[JuliosLX450]

some details on my tripple battery setup.

This are the 2 batteries running in parallel on the PS.

For the battery tray I used heavy gauge (about 1/4" thick) galvanized channel/track…..roughly 7"×13.5" You can see that I folded the corners in and bolted them.
I drilled a hole in the middle on each side for the tie-down J-bolts/bracket.
Finally you can see I fastened a bracket onto the frame (not the best spot I know, but didn't have many choices).

This corner is fastened to the radiator/fan shroud.

Used existing welded nut to bolt this bracket.
(just noticed I forgot a bolt, unless it vibrated off….I'll have to keep an eye on that)

Used an existing mounting point here as well.

Had to relocate the windshield washer fluid of course. I didn't use any sort of bolt-down bracket….it's super tight in there….just tie-wired one side.

I got the National Luna solenoid super tight here.

And finally here is the National Luna controller.