I've gotten about 40 emails on how I did this (sorry for the delay guys), here is a quick run down with some picts. My 80 Cutlass originally had an Olds 260, then a 468 Chevy, now a 6.2! Since G-Bodies also came with chevy engines the frame mount holes were already in there, but I had to move them back almost 1" for clearance.
Here is a basic pict of the engine bay:
The engine had to be moved back for clearance of the power steering pump, swaybar to crank pully, oil pan and starter.
Power Steering:
Crank pully:
And oil pan:
Oil pan again:
This picture is hard to get. You can see one of the shinny gold starter bolts, it is almost hitting the frame crossover. I'm using the newer gear reduction starter.
Check out the injector line vs. steering linkage:
The original heater box must be removed to clear the heads. At least the vehicles with AC, can't comment on ones without.
Attachment limit is 8, here is the last one:
http://www.streamlinemechatronics.co.../heaterbox.jpg
I installed some Pennsular Diesel super economy precups, for $65 each. I'm also running a 700R4 with 3.73s and 26.25" tall tires. Fresh injectors and IP from Kennedy Diesel. The pump is cranked and smokes pretty good when hammered! Straight dual exhaust with no mufflers!
I have plans for 3.23s in the rear. I'd like to keep my RPMs ~1800 while running 65-70MPH.
The engine is very heavy compared to the original 260 and the front is very bouncy. Moog 5664 front S10 springs did the trick, although I had to cut about 1/2 a coil off the bottom to get the height I wanted. Ended up installing/removing the set 5 times before I got it where I wanted!
Current mileage is averaging 25-27 cruising at ~65MPH @2200RPMs converter locked. I have a total of 3000 miles on the combo.