Yeah, my '90 was a 7.3L, our 83 was a 6.9L IIRC both were gutless N/A International Corn Binder engines. They couldn't sell them in a wheel tractor so, they sold them to Ford.I had a similar year truck with the 6.9 (maybe 7.3, can't remember) back in the day. It was a great truck, but slow.