Frank ZX

Does anybody know the answer to my question.

Hi,I'm new to the forum. I have a 1992 GMC 1500 P/U with a 6.2 diesel.The block is cracked. My question is can I swap in a gas engine?Is a Oldsmobles engine a direct bolt in?wwWhat about the transmission and torque converter,I'm not sure if the stall speed is the same from gas and diesel. I was thinking of Oldsmobile 350 or a 403 to replace the 6.2.What do you guys think?