That would be the 400 turbo.
Yes - probably a long time ago
YES. The 74 and 86 engine blocks are the same as far as DESIGN.
There are 6 bolts that holds the transmission to the engine.
The 86 2.8L automatic transmission will not bolt up to a 71 Chevy engine.
Depends on mileage, condition, engine, transmission, and options. Click the link.
yes
junk yard
YES.
There is only one.
The car has a 700R4 transmission. 4 speed automatic
The transmission oil goes in thru the dipstick tube.
yes