need help finding out motor specs on 14093638

I work with a guy that is willing to sell me this motor, I did some searching and came up with a late 80's early 90's  350, but that's about it.   One site said it came out of a camaro, he says it was out of a saburben  with 140,000 on it.  Is it worth 200 bucks?  I would be putting it in my 88 4x4.