6.2 swap

[militarytrux]

good morning,

just thought I would ask a few questions and see if anyone has any input or advise.

I have a low mile 6.2 out of a cucv, I aquired the correct flywheel and have been kicking around the idea of swapping it into my 715.

The 715 already has the 350 conversion to the stock trans via a novak kit, the 350 is tired and needs a rebuild regardless.

this looks very straight forward except for the clutch linkage, seems the diesel engine does not have the same free / open bolt holes for the clutch pivot ball as the 350 has?? and the oil lines may interfere as they are right in the way.

Can I block off the oil lines at the block?? the truck may travel 35 miles at a time on the longest journey.

Also it seems that the stock clutch disc and preasure plate will fit up to the diesel flywheel with no problems, may have to find a new pilot bushing??

Anyway, all comments / input is greatly appreciated.

Thanks,,,

[glenn]

Foodstamp did one that looks pretty nice, you might ask him. It looked like he used a hydraulic clutch setup. Look at his neverending post.

[militarytrux]

Thanks for the heads up, I will check out the thread and see what I can find,,,

[gimpyrobb]

Oilcan put a 6.2 in his 715 (twice). It was a great motor for the 7. I think he used an sm465, but it sould still work great with a stock trans. He will be along to put his 2cents in soon, I'm sure.

[hewl35]

good morning,


>>this looks very straight forward except for the clutch linkage, seems the diesel engine does not have the same free / open bolt holes for the clutch pivot ball as the 350 has?? and the oil lines may interfere as they are right in the way.

>>Can I block off the oil lines at the block?? the truck may travel 35 miles at a time on the longest journey.

I have a 6.2 in my truck but I have a 700r4. Those are the oil cooler lines and from my info you can't plug them with say a pipe plug. Instead just loop them from one to the other if you don't want the cooler. A good place to get info on the 6.2 is the www.dieselplace.com; lots of good info.
I replaced my lines with braided hoses as the stock ones will break every now and then. Be sure to run a oil pressure guage as you can pump the oil system dry pretty darn quick if you have a leak.
I'd get rid of the stock glow plug controller and run a ford style starter solenoid and fire the glow plugs with a spring loaded toggle switch. To start hit the glow plugs for 7 to 8 seconds and then crank. Stock glow plugs will swell if you glow for too long but can be replaced with self limiting glow plugs.
I believe since you are already set up with chevy motor mounts you won,t have to redo your mounts. I think I started with a stock radiator and put a 4 core in it. I'm getting rid of the fan clutch and will run an electric fan.

Oilcan and Rollie have run 6.2's. Matter of fact I have Rollies old truck that i bought as a project truck. Rollie took the body off a 3/4 ton pickup and put the kaiser body on it. It has hydroboost for brakes and power steering, tilt wheel, 208 transfer case, 14 bolt full floater on the rear and I changed the front axle from a dana 44 to a dana 60 since the 6.2 would break the outers on the front axle. Oh it also has a Bank Turbo kit on it also. If you have the whole truck might as well grab as much off of it that you can.

[militarytrux]

Thanks for the info, my thought on the oil lines is only due to the clutch linkage, I figured out a way to make it work with the lines and cooler.

the glow plugs are already swapped out and I have the soleniod to fire them off.

Hows your performance with the 6.2? I still have stock gearing, the 350 moves it right along but still tops out at 50MPH not sure the diesel will agree with that rpm.

[poolmike]

Hydraulic clutches are really easy to set up in these machines if the oil lines are an issue.

[hewl35]

Performance is pretty good. It's not a racecar but you can really feel the torque. I get 25 mpg, the axles are swapped remember and have 4:10 gear sets with lockouts.

[oilcan]

Before I put an exhaust system on mine I could bark the 9.00-16's with the 6.2 pretty easily. Now I have 11.00's and a dual 2" exhaust choking it down. There's still plenty of torque to play with, though. I can't remember the last time I used low range off road.

The whole clutch set can be reused if everything is still in good order, even the pilot bushing.


When I get over this pneumonia I'll take another shot at finishing up the second swap. Still a lot of little things to do.

[Jester]

How is the reliability of the 6.2? Any mods to the motor you have made?

I want a diesel bad and a 4BT is too expensive right now.