I am looking at a 1970 C10 that has s 366 tall truck big block in it from a dumptruck. I am debating on putting it in my 88 Jimmy. The motor I think is late 70's or early 80's. At this time I am not sure. Has anyone had experience with these engines. They seem to come in old fire trucks & big delivery trucks. Any horsepower #'s & torque would be good. Thanks for the help.