Scout II BUILD with Rockwells, Cummins 12V, and 46" Claws

[Blak Falken]

Here is the 6BT after installing the HD valve springs, 4000 GSK, fuel plate, tweaking the pump, 370 injectors...

Tony milled the rocker pedestals to ARP spec to provide clearance for the studs and nuts under the valve covers. Here I had just finished installing the ARP's and torquing the head down, I also had to re-adjust the intake and exhaust valve lash based on the firing sequence. After that I bumped the timing on the injection pump up from the factory 11.5* to 17* hence the dial indicator in the number one DV holder in the P7100.

[Blak Falken]

Here is the new exhaust manifold I am using on this project. It is a 3-piece BD Diesel manifold, the original manifold had shrunk and created some cracking. This 3-piece design eliminates these issues because it allows the manifold to expand and contract at different rates under thermal exposure.

Also notice the turbo adapter in the bottom left corner. I am using a He351VGT turbo off one of the newer 6.7L Cummins. This adapter allows you to bolt the He351VGT turbo which uses a WGMT flange to the T3 flange on the manifold.


For a little info on these turbos:

The 2007.5 and later Dodge trucks with the 6.7L Cummins use a Holset HE351VGT/VNT (Variable Geometry/Nozzle Turbine) turbo. The HE351VGT has an internal collar which changes position relative to engine RPM and regulates exhaust flow through the veins in the exhaust housing and into the turbine. It can effectively change the exhaust housing from 9cm to 26cm which optimizes the efficiency of the turbo throughout the operating range, decreasing turbo lag at low RPM's and providing more air and decreasing EGT's at higher RPM's. The compressor inducer is also 60mm. The veins can also be fully restricted to produce an integrated exhaust brake function. This turbo should spool almost off idle, and provide plenty of flow at higher RPM's...perfect for rock crawling.

[Blak Falken]

Here is the Cummins after paint and re-assembly...getting ready to drop it in the Scout.

[Blak Falken]

If you notice in this picture there is an International Navistar logo cast in to head on my Cummins.

For a little interesting info; the Cummins 12V was originally designed and developed in conjunction with engineers at International. It was first used in Case International agricultural applications in 1984, before it found it's way into Dodge trucks in 1989.

Come to find out my block and head are what they call a "Diamond Block" and "Diamond Head" because they were cast by International. These blocks are also pretty highly desired among Cummins enthusiast because they are some of the strongest castings ever made.

[Blak Falken]

Here is the Cummins after I dropped it in the Scout and bolted it in. I still have to get the turbo put back together, rebuild the vacuum pump, etc. I also had to rotate the oil pan so the sump is in the rear for clearance over the Rockwell, all you need is a different oil pickup tube, and the dipstick and a freeze-plug have to be switched.

I am going to have to remove the upper pulley/fan hub to create clearance for the radiator and the Mark VIII electric fan.

[Blak Falken]

Here is a side view with the Cummins in so you can see the different clearances (the oil pan isn't painted).

[Blak Falken]

Here's a couple of shots of the whole Scout with the Cummins in. The Cummins dropped the front end about 2.50" as expected so the rear end sits slightly higher now (this is how I wanted/designed it to be). I think with the added weight of the rest of the drivetrain the whole Scout will settle another 1-1.50" as the leafs springs are pretty soft.

I was pleased with the ride-height, it is sitting closer to how I wanted it to be...like I say I think it will sit just about how I wanted it to with the additional weight of the tranny, doubler, etc.

['71 800B]

This thing is SOOOOOOO Bad Ass

You have...... Its............... I'm Speechless............

[justscoutin]

lookin good. I just had the engine in my crewcab apart, and realized it was IH cast as well. freakin sweet.
that thing is bad lookin.

[chops24]

Build it good because you are the first sumbich I'm coming to see when I win the lotto

[guidolyons]

Schwing!

[EricsGreen98Tj]

So what year of trucks did the "diamond" cast engine and heads come out of?

And this thing and your skills are straight XXX rated TITS!!

[ih4ever]

Alright, so your in the Chico/Oroville area! I live in Chico and work in Oroville. Ill be paying you a visit one way or another! Your build is wanting me to start gettin mine up in going (havnt touched it since it broke on Rubicon 2 yrs ago).

Good lookin Scout!! Keep up the awesome work!

[Blak Falken]

Originally Posted by chops24

Build it good because you are the first sumbich I'm coming to see when I win the lotto

Thanks for the compliment, to tell you the truth I don't know if I could ever part ways with this Scout...been in the family to long. However, I could reproduce and sell you every part I used to build it.

Originally Posted by EricsGreen98Tj

So what year of trucks did the "diamond" cast engine and heads come out of?

And this thing and your skills are straight XXX rated TITS!!

I'm no expert on the diamond blocks/heads (someone correct me if I'm wrong), but as far as I understand there were no set years or applications that these were used in. International cast a bunch of these blocks/heads for use in the Case ag equipment, I think the surplus of blocks/heads were just used here and there on the assembly line by Dodge, Freightliner, etc.

I can't take all the credit for the work done on this Scout, Tony has been a huge help doing all of the heavy welding and machine work.

[Blak Falken]

Originally Posted by ih4ever

Alright, so your in the Chico/Oroville area! I live in Chico and work in Oroville. Ill be paying you a visit one way or another! Your build is wanting me to start gettin mine up in going (havnt touched it since it broke on Rubicon 2 yrs ago).

Good lookin Scout!! Keep up the awesome work!

That would be cool but I actually just moved down to Vacaville for a new job so I'm a little south-west of you now. Here's a picture of the move, just barely fit on the truck width-wise.

[Blak Falken]

A couple more:

[TayJ]

Such a badass rig! I love your Scout.

[The Fleckster]

I can see 1000 plus hours in this all said and done. You sir have some mad skills and my hats off to ya. Cant wait to see it in action, and in person.

CAN anyone say Tough Truck competition. I nominate you, who's gonna second that motion?

['71 800B]

[QUOTE=The Fleckster;14610719who's gonna second that motion?[/QUOTE]


I will.... I also can't wait to see it in action.

[04colly]

Our 95 case ih 5240 has the 12v 5.9 in it. And our 92 5120 has the 4bt. Case ih runs so many variations of Cummins motors in there newer tractors. Btw I love your freaking Scout.

[dukguy]

News?

[Jesse Ray]

So freaking bad ass! Mad props to you man!

[1st Recline Bn]

This makes me want another Scout.
Who wants a rusty FJ60?

[wahlstrom1]

Very badass build.... Only thing I can add is with all the effort/time/$$$ spent everywhere else, I'd ditch the 370 marine injectors (wrong spray angle) for a good set of 5x.12s or 5x.14s.... Just my $.02

[Johnny Quest]

Originally Posted by Blak Falken

A couple more:

it sits just right!! well done!!