you can do anything if you want it bad enough. but yes you can. the 1985 S10 4x4 blazers came with 4 cylinder engines. I know because my parent bought one. it was sorely under powered though.
On the throttle body.
2.8 or 4.3
06.0 on a 4cylinder 2wd s10
Yes
No. You can remove the engine and leave the transmission in the vehicle.
2001 4x4 s10 lug pattern
Try replacing the engine coolant sensor.
The check engine light would come on.
no they will not fit the gear ratio is different and the 4x4 axles are longer you will chew out the transfer case as soon as you put it into 4x4 on something packed
no GM changed the cases
Try replacing the engine coolant temp sensor.
NO. It won't fit on the engine block.