SOHC 6G72 Stealth / Montero question

[TajMan]

I just need a refresher, are the pistons different on '93 Stealth SOHC and '94 Montero SOHC 3.0 engines?

I think the crankshaft is the same and rods are the same, correct?

I'm fixing the Montero, with 2 spun rod bearings!
.. and I actually have the engine ready to source parts from, from my old '93 3KGT/Stealth car with 275K+ miles I drove from New Jersey!
I'm ready to shine up and re-use that ok crankshaft, as long as hasn't spun a rod bearing previously.
Jordan that owns that car now has had engine sitting in his yard.

[TajMan]

On Montero, crank bearings were thrashed I've never seen anything like it on a 150K 6g72 let alone a SOHC!

I need to pull heads to get pistons out..

Help guys? I did searching on this forum and couldn't find my answer.

[TajMan]

:(
no cool old members with info for me?

Tomorrow I'll be ready to compare Montero shortblock to Stealth shortblock and see if they have the same motor-mount bolt holes and everything.
If I can't use the entire shortblock, maybe I can use Stealth crankshaft and all 6 pistons/rods?

[BigTyla]

I bet they are the same, but keep us posted. I'm interested to confirm that.

Going to put a wooden body kit on the Montero while you're at it?

[ChargerX3]

Taj, there are some monteros in the j-yard if you need 3.5 parts.

[TajMan]

har har har

[3.0 SOHC parts]
Ya I know there are some Monteros at the Tear A Part
I pulled a Montero engine from the Pick n Pull, but it turned out 1 cylinder was dead so I returned the engine, I have $144 credit at pick n pull and they have no Monteros in their yard currently bah

There is also a '94 Montero on KSL in Logan UT for $800 bucks that runs but has coolant in the crankcase, probably just headgaskets.

[ChargerX3]

There is a 94 stealth rt there as well. I will be pulling parts at lunch.

[TajMan]

Report:

- All 6G72 cast cranks are the same, so my 275K+ mile stealth crank looks good and is getting polished and will re-use in the Montero! cool stuff

- Rods are marked different, still not sure if the length is the same or different. One set was marked 72 F and one set was marked 72 W.

- Pistons are different, Stealth pistons are dished a little deeper in a specific shape, Montero pistons are dished just slightly in a perfect circle around the edge of piston.

- The stripped blocks are only slightly different. Remember one is mounted in the car longitudinal and one is mounted in the car transverse. I believe that if needed a block can be converted for use in different vehicle with possibly a couple bolt holes for engine mounts etc drilled/tapped out to a bigger diameter. I'm not trying to do that here though, the 'complete' Stealth engine was damaged. Actually it had serious water/rust damage inside cylinder walls and around valves, from sitting outside uncovered for months and months.

I can post up some pics tomorrow. Anyone verify info on rods for me? I was going to have machine shop press out piston pins and swap 6 old Montero pistons onto 6 old Stealth rods..

[TajMan]

These are the only pics I took already
look at that corrosion and rust!
http://img.photobucket.com/albums/v608/TajMan/100_0282.jpg
http://img.photobucket.com/albums/v608/TajMan/100_0283.jpg
http://img.photobucket.com/albums/v608/TajMan/100_0284.jpg
(I believe I had just scraped the cyl walls with a razor at that point to try to push the pistons out the top, made things look even messier)