Thanks for your input. It belongs to a friend AND HE TOLD ME IT GETS 12-13 IN TOWN AND 18-19 ON THE ROAD. THATS NOT WHAT I WANT. Rust is not an issue in Nevada. My 4.7 Durango has a cracked head and I need a low cost replacement with beter gas mileage. I will keep looking. What I have found out is that 4.7's have problems over 125K. I loved that car but the German engineering is not for me. I keep my cars in 2-300K miles. My 440 lasted 250K and my 66 361 had 180K but losing a fan belt towing on a grade cooked that engine.