Gonna show how I do it, I know the 4.8 will hurt the trans, but even so, I can imagine situations where it might be helpful to know what it takes, and costs. Feel free to follow along.
First step for me was ordering this: http://www.speedwaymotors.com/60-Deg...late,3280.html

 

The biggest challenge is that the LSx flexplates won't fit inside the bellhousing, leaving the question of how to start the engine.
Note the adapter plate I ordered is intended to put the V8 trans behind the V6 engine, I'm trying the opposite, so the plate becomes a pattern for making a new plate, to which I could bolt a non-GM starter. Alternately, it's possible to weld a ring gear to the torque converter, then built a starter mounting bracket that bolts to the trans pan rails. Either way, flexplate work is required, whether trying the center of a V6 flexplate, or the perimeter of an LSx flexplate. As I have the V6 flexplate but not the LSx one, and I have starters for both engines, that may determine what I do. Not much point in investing big money into something that is temporary.

 

Subscribing. Just because I want to see pics of the adapter mock-up.

Don't forget to document the adaptation of the 94 trans. to the later PCM.

 

I had an LSx tuner guy do an integral-bellhousing 4L60E w/ PWM to my other 4.8, only difference here is the PWM shouldn't be in there ( I hate PWM ) so it should be feasible.

 

While driving to my job this morning, it occurred to me that an LS4 flexplate should bolt to my crank, and should fit in the v6/60 bellhousing, making me wonder about the starter for that. Gotta research.

 

Googling "LS4 flexplate" turned up nothing, but car-part.com turned up plenty of used ones, most are $40 plus shipping. I'm going this route. It'll be another month before I can order one, but no rush since the v6 is staying in the car until after the registration expires on April 1.

 

Let's keep track. Prices don't include shipping.

60 Deg V6 to TH350 Adapter Plate $ 69.99 Adapts engine/bellhousing bolt pattern
LS4 flexplate $ 40.00 Allows flexplate to fit within bellhousing
PCM Tune to allow for early 4L60-E $ ??.?? Allows late PCM / early trans. use together

What starter will bolt up to the engine and mesh with the LS4 flexplate?

I'm starting to think a trade for an LS4 would be an interesting possibility.

 

I was thinking along similar lines, going LS4, but they're over $1100 around here. I already had the adapter plate, I ordered it from Speedway 2-3 years ago for another project. But known-good 4L60Es are rarer than hen's teeth, and I like their ratios. I hate the 4L80E ratios.
The 2.2L S-10 torque converter stalls at 2560 RPM, 3.4L '93-'95 Camaro owners are reporting stall speeds over 3000, and they go for around $140, remanufactured, so it would be a fun attempt. When V8-spec 700R-4s and 4L60Es fail, it's never first gear, so even if I hurt my 4L60E, I can still try the 2.2L torque converter's launch.
I need a tune anyway to unlock the VATS and calibrate for my axle ratio and tire size, canned tunes have given me satisfactory results on my 4 previous combos. Under $100, so still low-budget.

 

And figuring out the starter is my last concern, my first is just getting everything else bolted together functionally. Gotta stop by Ipaco and get a 2'x2' plate of 1/4" mild steel for connecting the engine block to the transmission case.

 

Now exactly one month from taking the '94 Camaro in question off the road, ( registration expires ) and selling the 3.4L V6 out of it.

 

Finally getting back to this.

 

I know this is an old post but did you ever get this to work? Thank you.