well the 5.0 puts out i think 280lb trq and the 5.8 is at 310-320ftlb torque. ive done the swap on an 88 bronco years ago and was the best mode i did at the time. mpg was better also especially around town. I gained 1 mpg city and 2 hwy over what the 302 got. some of that may have been due to high miles on the 302.