\'80 Chevy Shortbox... 292 or 250 6-cylinder? A guy I know has an '80 Chevy Shortbox 4x4. It has an original (I think) 6-cylinder with a 4spd and 205. I'm trading some parts to him to get the 4spd and t-case, and today he stopped by and said I could have the motor as well. He says it runs excellent, and that it's a 292. I thought 292's were older motors and 250's were used starting in the '70's through '80 or so. If it is the factory motor in 1980 which he says it is, would it be a 292 or 250?