Those both sound like excellent engine builds.
That "ultimate street engine" build sounds awesome. What size injectors are in the plan for that engine?


I did a search on Cummins QSB pistons & all it brought up was Compdiesel threads. It looks like I should start reading that forum.

Coated QSB pistons with 03-04 injector nozzles would be a really nice combo.


Mike,
It looks like prepped Cummins forged rods are about $1000-1200. Meanwhile forged or billet aftermarket rods are $2200-3000+.
I must be missing something??


Did Kevin M. ever come up with a plan for his 6.7L race engine?
Too bad he doesn't live nearby as he would have lots of help with his engine & truck.

 

Nothing is set in stone, but looking to start with a set of 150's. The truck already has dual cp3's. It will also be run on EFI live.

 

Thanks Brett..

So the R & R billet Cummins rods are nearly $3k, how much are monotherm pistons?

They must be some kind of specially alloy, I've never heard of steel pistons before...

 

Monotherms are a steel alloy piston, not aluminum like the factory or other aftermarket ones. They are expensive at $500 a hole.

 

Most engine builds that we doing currently, 12V rods are on ragged edge of being able to handle the power without issues.

My 06 CTD engine running the marines, will be using 12V, but its more for the guy wanting a near stock engine. Have no current plans to cutting the intake plenum for that engine. Going to run ARP2000's in the mains and head studs, haisley A-1's for the rod bolts.

 

I thought they were having issues with the A-1 H11 bolts. I thought the ARP L19 bolts were the ticket.

 

I heard that as well, I'm going to check into it. ARP stuff I have to custom order them and its 2-3 weeks out. Cummins stuff is a good back up and is reasonably priced.

Short of testing stuff by doing strain/yield strength metallurgy tests, it would be hard to determine if the haisley stuff are any good. The torque setting on the rod bolts are higher than cummins. CR stuff is even higher than 12V/24V stuff, we found that out on the last build. Stock 12/24VP is 90ft*lbs, CR was around 120ft*lbs. Haisley is around the 120 ft*lbs area

 

Just throwing this out for everyone's info. ARP mains studs will not work with the stock CR main stiffner.

Those 480 pistons look awesome, they just came in last week. We made a lot of progress yesterday. Made a trip to the powder coating shop and have powder coated lots of pieces. I'll will post pictures for everyone to see this neato build-up.

The orings in the head are done perfectly. Thanks Dave Have to bug Dave for some cool looking billet bits.

 

Just going to throw a few pictures for you guys to look at. What you guys think?

The ZZ is the metal intake and the hellman is the aluminum. I also have an CR ZZ intake.

 

Thats pretty nice stuff Mike.

 

Its nice to see how the aftermarket is coming up with new stuff. The intake is way way more open, and that NOS rail is sweet. Going to drill some ports for water/methanol spraying.

Can you believe that there is no standard flange for any intake you run, I personally prefer the banks style, with the locating dowels. The hellman bolts to low and causes some issues with intake flow some. Don't like where the bolts go either, but that me.

I'll get a few on these onto a flow bench for some air flow tests.

 

Thanks for the pics Mike. Those side intakes are awesome.

I think I've asked this before but can I ask where you are getting the heads machined? ie. the integral intake manifold machined off & then drilled & tapped for the aftermarket intake.
Local Alberta machine shop?

It is interesting that the intake openings, ie. the input to the intake manifold, is so different for the 2 intakes. Is this for fitment purposes?

This pic is deceiving since the intakes are sitting in the opposite orientation to each other but the difference in intake openings looks dramatic.





I look forward to your findings with these intakes. Toss up a few more pics if you get a chance.

 

Joe, you are correct that they are different intake the Hellmans and the ZZ. That picture is one of a CR Hellman and a VP ZZ fab. I'll post more pictures down the road showing the intake differences and how the heads were ported.

We have a shop that does the intakes and head porting for us. These three head would flow around 240-250cfm at 0.500 lift on the intake and 200 cfm on the exhaust.

If you want one done up, let me know. I probably work out a exchange head for ya. If it was my head, I would get the banks intake flange done and run a ZZ intake.

I will also post some pictures showing the stock pistons, QSB marines and the mono therms. I also plan to post some pictures showing the differences between the callies and R&R rods.

I also have a few duramax builds going on, so.

 

btt


any updates

 

Out of both engines only the 480 marine engine we built has made it onto a dyno. It did nearly 800rwhp on fuel and almost 1k on spray. That engine only has 150HP sized sticks, single CP, S468. A total sleeper.

The engine with mono-therms is still going into a 06 truck. That truck has triples and a more exotic fueling system. All which takes more time to complete.

I have pictures of both engines and trucks on my phone, just haven't got around to getting them posted up. Been busier than heck these days.