looks like he hit it with a d.a. by the sand marks. i not interested in buying this one. i just thought it was cool (if true) that thier is a 78 out there that has never been in water. and maybe someone here might be interested. that particular type of motor happens to be one of my all time favorites. based on what i have heard and the awsome reliability and brute power of my 79. i am looking for better milage and the added reliability of a newer motor. my 79 didn't exactly sip fuel.