I am looking at an 89 f250 with 460 engine. a few years ago I had the same thing only in a 90 model. are there any differences between those two model years. any bad things in an 89 i should look for? any help is most appreciated

 

acording to PAW 460 engine changed in 3/89 as does the gasket sets

 

also the 89 should have a external oil cooler with oil ines ti\o a small radiator like unit.
the 90 should have an oil cooler assembly with coolant flow thru it and no external oil lines.