Hello, I am trying to figure out a way to stuff a 6.2 into a jeep YJ and figured this board might be a better place than my jeep board for my diesel questions. So here they are.


It is fairly easy to stuff a 350/454 into a YJ, does the 6.2 have any of the same mouting positions as a 350/454 such as motor mounts and bellhousing?


Second is the 6.2 physically bigger than the gassers? The gassers aren't that tight of fit.


Third what does this it weigh in at?


Last will the same transmission setup for a gasser work as far as input shafts?


My reason for wanting a 6.2 in my jeep is fuel mileage and engine life, and to be a little different than everyone else. Also I think I know where I can get a 6.2 fairly cheeply... just need to figure out how to get it in there. Thanks abunch... great site!!!!

Don't have the weight but its a tad more than a Big Block.


you would need custom springs in front, thats a way heavier motor than the 6 cylinder. for drive line, keep in mind you can't rev this motor like a gasser. Not sure the max RPM but sure its somewhat below 4,000 rom and maybe closer to 3,000. I am certain you will get better answers than what I just gave you.Edited by: thevirginiadude

Hello, The weight of a 6.2 is 70 pounds heavier than a 454. The weight of a 454 is 100 pounds heavier than a 350. My tach in my silverado readlines at 5,000 all though i have never had to take it past 3500 rpm's.





Eric

Thats not that bad at all... I had guessed it was heavier than that, Thanks! Does anyone know about the bellhousing or motor mounts? If they are shared or even close to that of a gasser (350 or 454) I'm going to clean out a place in my shop to work!! http://www.dieselplace.com/forum/smileys/Big Smile.gif

The 6.2L should fit any chevy bellhousing. It is physically not bigger than a 350 chevy. The input shafts conversion can always be acquired fro advanced adapters.

does it share motor mounts with any or the gassers? Looks like I have some work to do... yall might be seeing more of me.. I'll probably be the only one in a jeep

The diesel motor mounts are better grade than the gasser ones but in the same location.

Thanks yall have been a huge help!!!!

Take some pictues and post them as you shoe horn that puppy in. You should google search for custom preches for your motor mounts or find some one to weld them for you. I've seen articles on it and there's a few angles to figure to make it sit right.

to make it easier but more costly, depending on what you have laying around, i would swap the entire drivetrain. t400 trans or muncie 4 spd, np 205 transfer (gear driven no chain), then have driveshafts cut and adapted to fit. you can also do a two stick conversion on that 205 to get front and rear separate controls. they call it atlasizing your transfer after the advance adapter's atlas transfer. those are nice but big bucks! one of the off-road mags had the procedure step buy step about a year ago on how to do the twin stick conversion yourself(mainly r&r and simple grinder mach work) good luck and post some pics of the whole project. you can prove that sometimes it IS hip to be square Edited by: lupey6.5

Yeah that looks like the route I'm going to take... the muncie will be a lot easier than matching up parts and its a butt load stronger. Is the clutch on these things hydro or mech? Hopefully hydro, that will be easy. As for the motor mounts will a 350 swap set of motor mounts work. With some strengthening of course, or am I going to have to fire up the welder?


I will be sure and take lots of pics once I get all my parts rounded up... I think I'm going to have junkyard dog painted on the hood. http://www.dieselplace.com/forum/smileys/Big Smile.gif

I didn't know the Muncie ever came in front of a transfer case. TH400 MAY make for a fairly short rear shaft.

I agree that the muncie is the tranny to use, as long as "muncie" means an SM465 and not a car 4-speed.

You can use small block or big block chevy frame motor mounts, but you should beef up the strength. I am using chevy 350 polyurethane mounts on my 6.2 right now, so I know that the 350 mounts and the 6.2 mounts are the same dimensions.

A 6.2 has the same motor mounts and bellhousing as a gasser, and is about the same external size as a big block. Keep in mind that you can use the vacuum pump for your disk brakes, but hydroboost is a better solution.

Also, its my understanding that the auto starter is different than the manual starter. So, if your donor is a manual you are set, but if not you will need to find a flywheel and a starter.

The 6.2L/6.5L flywheel is expensive. $500 and up for a dual mass and I'm not sure what the improved single mass lists for.

a donor truck would probably be the way to go. thay way you get all the major parts you need and it already fits together. do some measuring because if the 4 spd does run divorced from the tranny that would make the t400 the better choice. they are cheap, anabundantly avilable, and can be rebuilt inexpensively. some of the jeepers i know prefer the auto trans for rock crawling providing your gearing is low enough to not miss the granny gear of the 4 spd. most gasser jeep swaps i've seem use the t350 but behind a diesel i wouldn't trust it to hold up anywhere near as long as the t400. can't wait to see the pics! gud luk!

Any Gasser bell housing will fit, but I found the diesel starter nose
wouldn't fit into the bell housing I tried. I had to get a diesel bell
housing.

.

I'm kind of interested in finding out about if the manual and auto
starters are different. I've heard it both ways. I measured dia,
counted teeth, measured width of teeth and installed both flywheels and
measured distance from the back of the engine. I came up with similar
results. Looks to me like it should work, but I guess I'll find out
someday when I bolt up my starter that was of the auto vehicle.