Yeah the crack in between the number 8 cylinder valves was more of a crater LOL... The 5.2 heads I put on it had zero cracks in it and the guy said the 5.2 probably had 175,000 miles 25k more than mine LOL... I just got to get these last couple little bugs worked out and I should be fine... Could just need some tune-up stuff wires and cap and rotor and or coil or an O2 sensor or something but hoping for the best and prepared for the worst. Again the only code it through was a number six misfire which was not what I was expecting...