There was a dodge that was for sale the was blown up and it was done by a body shop enployee and it had a rod thrown in it. No warrenty. I dont know how some one could have blow up a engine that had a governor, unless he left a brick on the throttle and started up the engine and went to lunch. The truck was very simular to what you are describing here. I had to pass as to much unknow for me. JimK