thanks guys. im coming to a point where im sick of things breaking all the time and not getting an engine to run correctly so after the 408 had a vibration issue i pulled it apart and it seems two of the pistons had damage to the lower skirts and it was slightly out of balance. and the bearings were pretty average.
so a new set of pistons, rings and bearings, balanced it all up. but engine is all back together now. dont have many pictures. but while the engine was out i also found another problem. my exhaust flex had blown out from the inside out... so thats currently at the shop getting a flexible piece with a metal inner sleeve so it cant blow out again. and once that is done the exhaust from engine to half way down the front guard is going to the ceramic coaters for 2 coats of black to try and eliminate some of the overheating problems i was having with the bigger engine. ill post up some pics and try keep this updated with how things go.
The exhuast flex that shat itself
the average bearings
i modified the rocker covers to take 2 big breathers.
sump going back on.
painting the block