6v92 & 8v92 interchangeability

[Hallback]

So the old twin steer that I bought a few years ago has a 6v92 in it, It stuck a valve and broke the rocker stand in the head casting. I've got an 8v92 sitting here in the old westcoaster yarder. Would I be able to yank a head off that 8V92 and put it on the 6V?

 

[crane operator]

No, you need a 6v92 head, if you had a 12v92 around- you could steal one off it. The 6v92 head shouldn't be hard to come by, there's still a lot out there.

 

[kshansen]

The "6" and "8" refers to the number of cylinders and the "92" refers to the displacement of each cylinder. Same holds true for all the Detroits from the "53", "71", "92", "110" and "149"

 

[crane operator]

Or you could spare yourself the heartache and go ahead and repower it. I can't keep heads in my 6v92.

High flow Big cam, air to water cooled 3406B.

 

[Vetech63]

Is the head not repairable?

 

[1693TA]

Is the head not repairable?

You cannot do that any longer having sent all your DDA tools over to TS.....

 

[Hallback]

The "6" and "8" refers to the number of cylinders and the "92" refers to the displacement of each cylinder. Same holds true for all the Detroits from the "53", "71", "92", "110" and "149"

And that is why I figured I could interchange the heads

 

[Hallback]

Or you could spare yourself the heartache and go ahead and repower it. I can't keep heads in my 6v92.

High flow Big cam, air to water cooled 3406B.

Trying to put a 3406 in a steel fendered A model is a bitch

 

[Hallback]

Is the head not repairable?

I figured it would have been much easier just to swap it out

 

[1693TA]

I feel, (but don't really know) you'd be hard pressed to find a cylinder head compressor these days to install a 8V-92 cylinder head onto a 6V-92 cylinder block. Same thing to install a 6V head onto an 8V block with an appropriate cylinder head stretcher.

 

[Hallback]

I believe they're individual heads per cyl.

 

[OzDozer]

Nope, just a quick Google search for "image" of a 6V-92 shows you Detroit 2 cycle engines utilise a one-piece cylinder head.

Detroit Diesel 6V92 Long Block | Turbo Intercool Engines | Diesel Pro Power in Australia

Detroit Diesel 6V92 Long Block for Turbo Intercooled Engines. We have the lowest prices and fast assembly. Try Diesel Pro today.

dieselpro.com

 

[Vetech63]

I believe they're individual heads per cyl.

A single cylinder head for a 6v92 will be for 3 cylinders. An 8v92 will be for 4 cylinders. If you have individual cylinder heads for each cylinder, then it isnt a 2 stroke Detroit

 

[Truck Shop]

Don't worry Hallback your in good hands-every expert salt water chevy man has answered your
prayers. I put return to sender on those wonderful items vetech flapped over.
Call Hagerman Salvage, but there should be a source for a replacement head in your area.
6V92's were real common.
There are heads all over in a wide range of price online.

 

[Hallback]

Don't worry Hallback your in good hands-every expert salt water chevy man has answered your
prayers. I put return to sender on those wonderful items vetech flapped over.
Call Hagerman Salvage, but there should be a source for a replacement head in your area.
6V92's were real common.
There are heads all over in a wide range of price online.

Thanks TS!
Hope you have a Merry Christmas buddy and all is well over there.

 

[Tyler d4c]

I feel, (but don't really know) you'd be hard pressed to find a cylinder head compressor these days to install a 8V-92 cylinder head onto a 6V-92 cylinder block. Same thing to install a 6V head onto an 8V block with an appropriate cylinder head stretcher.

10 out of 10
9.5 out of 10 for originally

I may have laughed way to much at this

 

[1693TA]

10 out of 10
9.5 out of 10 for originally

I may have laughed way to much at this

They were after all, the "Two Stroke Joke".

Humor is easy sometimes; and all good.

Thanks,

 

[Hallback]

People laugh at the Detroit but those are the best engines to ever be installed in a yarder.

 

[OzDozer]

Don't forget so much WW2 equipment only got to its destination because they were powered by Jimmys - landing craft especially - and quite a bit of armor, too.
Mind you, the drivers and riders all ended up deaf, but at least they got there!
And they automatically covered themselves with oil to prevent corrosion. How brilliant an idea is that!

 

[1693TA]

I actually like them. Maintained many over the years and still have a 3-53, 8V-71, 6V-92TA, and a 12V-71T at the shop. I use the International truck with the 92TA as my yard horse as the truck around it is no longer road worthy, but it runs well.

TS would think he'd died and went to a happier place if he ever came over here.....

Wouldn't even need to be too worried as I have a varied selection of DDA tooling around to take care of them also. He could even start right away:



Got a freshly rebuilt set of fuel injectors to install into this engine I just haven't made time for yet. Got a lopey idle for about 30 seconds upon cold start wanting to address.