5.9 vs 6.7 Cummins blocks 

Never knew how close the 5.9 and 6.7 engines were. Thanks for the info

When I blew a head gasket in my 6.7 I wondered how this could happen since I had never had a 5.9 head gasket issue. When I pulled the head and saw those coolant passages I knew exactly why. That was 2012. I haven't bought another 6.7 since.

oh man, now I have to build a 6.1 cummins, I feel challenged!

Great info, thanks Rob!

Very good info. My oil pump kind of “walks” a bit more than I’d like in my 12 valve I wonder if they sold me a cr pump.

Great video! Thanks for sharing, this is exactly what I was looking for! Subscribed and looking forward to learning more from you. 👍

Seriously this was awesome can you do another one of these videos with the 4 cylinder B series? 3.9(5.9), 4.5(6.7) and specifically additional proprietary info for the 3.3 block?

great explanation

So could I bolt the gear housing and stuff to a 5.9 p pump from the 6.7 I’m asking because I have a 6.7 the locked up from no oil and I have a good 12v out of a 96 I want to swap in and get the sensors to bolt up for transmission to work?

5.9 block full coolant flow around bores, 6.7 siamese bore casting. That's why the 6.7 blocks are stronger

You forgot to mention the 12 valve international cast block!

6.7 sits further up in the truck by about 1-2” compared to when I had the 5.9 in I had to trim off that much on the turbo tubes and floor for the g56 or maybe it’s me idnk

The 6.7 oil cooler has 1 more row than the 5.9CR oil cooler

I would like your opinion. I have a 2017 6.7 in my RAM 5500 and would like to add a coolant block drain for maintenance purposes. Where would you place it? Thanks in advance Luis

You should do a video on heads?

Hey Rob, so the larger 8 plate 6.7L cooler will fit in the 5.9L & not have any adverse effects? Also what CR engine years can you add a 2nd piston squirter too #6 & what size ect? You once told me I could shim the oil bypass spring 50k to increase the psi to safely run compounds & a bypass or centrafuge. Would your also drill & tap the cooler for its own port or T off one of the turbos ? I like the idea of a separate port, where is the best place to ads one? Thanks ! Dusty

What about the motor mount areas I know the old 12 valve is 4 bolt what about 98 and 1/2 to 2002 24-valve versus the Gen 3 the 5.9 and the 6.7 Cummins are they all 6 bolt and in the same area?

Great stuff👍👍

ok 2 questions #1 will that common rail girdle fit on a 12 valve storm block? #2 will a 12 valve head bolt on to a 6.7 block? just curious I've never tried to mix parts from common rail/ 6.7 to 5.9/12 valve stuff.

Do video on the 5.9 6.7 piston pin hight if you don't mind so we can see the difference thank very good video 👍👍👍👍

Can u run a complete 6.7 short block and runs 5.9 head with 03-04 injectors ?? If so what head gasket and head bolts do u run the ones for the 6.7?

Some people told me they bolted 12v head directly on the 6.7 block

So can i use a comon rail 5.9 block with a vp44 head to replaces a cracked 53 block?

why would you build a 6.1 when a 6.7 is available? I noticed your video where you sleeved the block back to 5.9. was that for running a 12 valve head? my question I guess is why lose cubic inches when the stroke is the same? can't find any info on torque differences with bigger cubes and the same stroke. I am building one right now but wonder if it is a waste of money.

Are the oil pans the same bolt pattern?

I installed a 6.7 on my 05 ram i have it running with 5.9 fuel system, and injectors from original engine only issue is it smokes at 1,300-1,500 rpm what adjustments can I make?

one reason the 6.7 is stronger, the cylinders are joined or "Siamesed"

so there is no way to tell the difference between a 5.9 or 6.7 block while its intalled in a truck?

Love 12v

Are 6.7 and 5.9 the same length and weight? Thanks for the video?

How big of a bore can you go to in a 5.9 block with or without a sleeve?

I want to buy a 6.7 for my 05 ram Cummins. The engine I saw has fire damage. Burnt. Do I’ve to do the head gasket on it if buy?

Are the lower water inlets/ ac brackets the same between the two?

is that a p pump on that 6.7 block?

What does "common rail" mean? And what year or model did these begin? Thanks!

So I can by a 6.7 short block when my 5.9 block takes a dump?

So if I want to build an motor for my 2016 6.7 are all the 6.7 blocks the same year wise or are they different from 7.5-13-14-18 ?

Do you know how many thousandths lift on my p-pump is stock for 14 degrees , I believe my timing arm is bent in my pump

Nice!

What factory girdle is best ? And what size bolt for an early 6.7 bought and engine and they are missing bolts and girdle. And the early girdle is discontinued and so are the bolts please help thanks i. Advice

So......if my 5.9 CR ever gives up, I can swap it with a 6.7 short block and have no issues?

I might buy a 1998 12 valve. But I read around in 1998 had some 53 casting. Can you do a video on the best and worst casting in Cummins blocks. And does the 1998 12 valve use 53 blocks. Thanks

Looks like my garage at Home LOL

Good video in your opinion which one is more reliable?easier to maintain?

I was think about building a 6.7 block with a 5.9 head for my 01Dodge is that possible and do you do that. Im in the state of Washington. Thank you

So you can p pump the 6.7 block, manual fuel pump?

98 was last 12v, 98.5 24v Not that it really matters tho.

Im getting parts together for a swap. What 6.7 would i need to put a 12v head on and it work? Is it a reliable combo for a tow vehicle?

Do you know the differences between the 07-12 6.7 block vs the 13-18 block?

Can 12 valve 5.9 be bored and stroked to a 6.4 or 6.7 ?

I have thought about buying a Dodge cummins for a long time, Is 5.9L more fuel efficient than 6.7 l on a 2007?

♥️C♥️U♥️M🤘M♥️I♥️N♥️S… 😘