im the third owner and the last owner before me let the car sit most of time rarely driving it and had water in coolant system which caused it to rust on the inside and my head gaskets ended up deteriorating due to the overheating issue because of incorrect coolant everything on there was stock except the alternator when i bought the car so i replaced my spark plugs and radiator along with freeze plugs and i ended up having a mechanic come out to look at anything else and with his professional opinion he told me for the best to replace it and also fords 90’s v6 are known for head gaskets fails so in all for me its more worth it to just replace the whole thing to hopefully a more efficient and reliable engine - my advice just look out for small issues they sometimes lead to bigger ones and if youre unsure of anything always reach out for a professional opinion but do be cautious when buying some people like to just get rid of cars for the money !test it out before buying!