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what to do with a 6.2??

big block 88

big block 88

Big Block 88
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Kansas Topeka
SO sitting in my garage is a new rebuilt 6.2 military surplus engine complete minus glow plug controller.

My question is what should I do with this thing, I have been in the Common Rail club so long I am worried I will invest time and money to put this motor in a 1/2 ton chevy and then not be happy with the out come. Can I put the squeez on this motor and get a decent amount of power I have a few turbos sitting around I could plumb in but can t take boost?? I know nothing of these motors other than they are kinda gutless stock. Any ideas???
 
The 6.2 can safely make about 250-300 HP as long as some rules are observed.

No more than 12-13 PSI boost and keep the EGT's to no more than 1000F at the outlet of the RH manifold.

Great little engine but not a DMAX


Missy
 
Well Ace if I end up with a few more sitting here I'll keep you in mind.


Thanks Missy I was thinkin about puttin it in a early 90's halfton Z71 chevy or GMC we have an 700R4 and a turbo 400 sitting in the barn I may just go ahead and see how it runs here once I find a truck
 
The J code blocks from what I know are a little stro nger otherwise I don't think there is much difference, the 6.5 heads I think a re a little better . IIRC Bills bonneville was a 6.2/6.5 ??? OR maybe someoine else I don't remember.
 
How can you identify a j-code block? I am going to check out a 6.2 from a 1991 truck for a back up for my 6.5. Is this a good year block? Thanks.

Steve
 
I can NOT find a freakin truck if my life depended on it!!!!!!!!!!!! We just put one of the 6.2 in a buddy's 91 V30 Chevy it had a 350 from the factory and 4.10's, the motor felt pretty good more TQ than the old 350 but it was down in HP department. I still have another motor sittin around all I need is a truck to put it in.

I guess my thing is how much $$$ will I have wrapped up in it for 200-250 hp and for it to be reliable as can be???
 
Jim over at the page built a 6.5 TD and it was producing a solid 300HP.

The 6.2 is so little different that it could do the same thing with ease.

The 6.2/6.5 platform is highly overlooked.

A good port and pollish job on the heads along with a ballance job will do wonders.

A free flowing exhaust and a good turbo helps a bunch.

Having the IP turned up and the injectors set properly and these little critters can really do some serious haulin.

The difference between the J and C motors is not in the block, pistons, crank
The difference is the intake manifold with EGR for the C, the settings on the IP and possibly the injectors but basically its about emission settings.

The 6.2 used a whole buttload of different precups through the long production run from 82 to the mid 90's

You can use any precups you like as like as long as they all match.

The larger port cups of the later 6.5 engines were for power and the small ported cups were for economy.

We must remember that the 6.2 was introduced to be a real mileage getter and not a Horsepower moose.

Once Ford and Dodge came out with more HP then GM introduced the availability of the Banks Turbo as a dealer installed option, then followed the 6.5 TD.

A good running "stock" 6.2 can make around 160 or so Flywheel HP.

About the same as a stock 350 but with more useable low end torque.

If you try to compare these to a DMAX, well forget it, no comparison.

A good running K5 Blazer with a 6.2, 700R4 tranny, 3.42 gears and in good shape can get 24+ MPG Hwy at 60 MPH and likely 20 in town or close anyway.


Missy
 
What do you intend to do with the truck with the 6.2 in it? After a Dmax... Even vs. a gas engine the 6.2 doesn't feel like it can get out of it's own way. The cost of maintaining it eats at that high MPG number.

So if you think you will be disappointed with the power your best bet is to sell the engine.

Otherwise you have a stupid simple engine that is an easy drop in and cake to work on over the crowded PIA Dmax. A turbo added to the 6.2 with 1/4 turn on the IP really scoots. Gets dusted by a stock common rail but still respectable.
 
big block 88 said:
SO sitting in my garage is a new rebuilt 6.2 military surplus engine complete minus glow plug controller.

My question is what should I do with this thing, I have been in the Common Rail club so long I am worried I will invest time and money to put this motor in a 1/2 ton chevy and then not be happy with the out come. Can I put the squeez on this motor and get a decent amount of power I have a few turbos sitting around I could plumb in but can t take boost?? I know nothing of these motors other than they are kinda gutless stock. Any ideas???
Click to expand...

Stuff it under the hood of an old GM B-Body and make a family hauler that will get 25+MPG.
 
No intensions of making a hotrod out of it. dad has had these motors forever and I just want to use them. If I could come up with a truck to put one in I'll throw it in and see how they run. I have driven CUCV's and they seem to do pretty darn good with 4.10's. I have a couple turbo's sittin around also but they may push a bit to much boost, but I can come up with a smaller unit I am sure.

Thanks for all the help, IO know alot of you guys love these old motors and I think I want to see what all the fuss is about.
 
"Engines" Motors are electric...

You will see what the fuss is about. I know my 6.5 and 6.2 better than I want to. I am only here due to cost of not being able to keep a new Dmax. With that I have seen the inside of my engine through a hole in a burned piston.

So it is kinda like working with an antique. Yet, the parts are fairly cheap and a complete engine, used, is less than a set of Dmax injectors.

So for a fun toy I say go for it. Look at crags list for an old pickup and be willing to tow it to your state - a easy fun trip with a rented u-haul and your current truck.

I have carted my busted truck home twice on a flatbed so it will be good practice for you. (One blown engine and one flattened elk.) :rolleyes5:
 
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