6.2 in a jeep

[jamesonsdad]

Hello all I'm looking to put a 6.2 in my wrangler in place of the 350 in her now, anyway I have access to a good motor out of a cucv and it will bolt right up to the 700 r4 tranny,my question is can I run it 12 volt and what needs to be done to do so? I know I'll need 12v glow plugs but will I need to change the flywheel on will my 12v high torque starter work ? Any feedback is appreciated

 

[Speddmon]

The glow plugs are already 12 volts.

You'll need a flex plate for the R4 tranny and as long as your starter bolts up and teeth match you're golden.

 

[jamesonsdad]

The glow plugs are already 12 volts.

You'll need a flex plate for the R4 tranny and as long as your starter bolts up and teeth match you're golden.

Flex plate???

 

[Speddmon]

flywheel.

In an automatic tranny it's called a flexplate, the torque converter bolts to it. The one for the stock CUCV tranny and the one that fits an R4 have a different bolt pattern. An actual flywheel is much more sturdy and heavier.

 

[jamesonsdad]

Can I use the one off the 350?

 

[Speddmon]

I don't think so, I doubt it would bolt to the engine. Just go to your local NAPA, Autozone, CarQuest or order it from Rock-auto. Just need a flexplate for an '84 Chevy K5 Blazer with a 6.2 diesel.

 

[Speddmon]

You'll also want a new torque converter, the one form the 350 will have too high or a stall speed. You'll want a 1600 stall converter. And you'll need to governor in the tranny changed out with a diesel governor.

 

[jamesonsdad]

So get a flexplate for a 84 diesel blazer with a r4 tranny correct?

 

[jamesonsdad]

Guess I could pull the whole drive train out of the cucv (wrecked) and swap or out sounds easier lol,the jeep is alltready set up for gm driveline thanks for the advice

 

[Speddmon]

Yes, flexplate for an 84 K5 diesel Blazer with 700R4.

If you used the stock CUCV drive train you would not have any overdrive, the turbo 400 doesn't have OD.

 

[MarcusOReallyus]

You do know it weighs about a couple hundred pounds more than the 350, don't you?

 

[jamesonsdad]

Yeah I know but sounds like less work I guess,but your advice is great I'll way the pros and con's of the swap I'll post pics when she's done thank you again

 

[jamesonsdad]

I've got military springs on the jeep so it should be good with the weight difference just getting antsy for a diesel jeep

 

[Warthog]

You will also need the Throttle Valve (TV) cable and bracket for the diesel/r4 setup.

 

[MarcusOReallyus]

Some folks put a Mercedes diesel in them. I'm not sure which one, but it's the same weight as the 4.0, and fits really well from what I've read.

But matching it up to a 700R4 would be... really interesting!

 

[porkysplace]

You do know it weighs about a couple hundred pounds more than the 350, don't you?

350 chevy weighs 575lbs
6.2 chevy weighs 700lbs

 

[gimpyrobb]

Your mileage should go up too. I think the 6.2 is a great jeep motor.

 

[jamesonsdad]

I've allredy got three volunteers and my buddy's shop to work in gonna be a spring,early summer project but I will post pics of the work when the time comes I even have a line on some Humvee tires

 

[Speddmon]

Can't wait to see the pics and hear about the progress. You won't have an excess of power with the 6.2 but a diesel jeep does sound like fun.

 

[paladin1176]

Can't wait to see the pics and hear about the progress. You won't have an excess of power with the 6.2 but a diesel jeep does sound like fun.

Considering how gutless any jeep is that doesn't have the 4.0...the 6.2 is going to feel like a road warrior in comparison. My buddy has an 88jeep and we were considering dropping in a 4bt cummins when he blows his now third motor.