My knowledge on the 5.7 is very beginner, so can't offer much in the way of info. The builder won't look at it and I won't pull the heads in the car, it was just painted. Ordered an ATK crate motor and it will be here in 3 weeks. So back out the bottom it comes. There is too much to do to just pull the valve covers, so I am eliminating the problem completely. I will have someone check out the old motor when I strip it and after I find what is messed up I will decide what to do.
Link for video
https://www.youtube.com/watch?v=eIN2lfFoJPMListen for when it shuts off.
