So I have an 01 Supercrew 5.4l and found out the reason I was miss firing on cylinders 1,6,7, was that antifreeze was down inside the coil holes for the plugs.... Well Im currently buying a 01 Lightning engine for 2g with ecu but its got a dead cylinder on number 2( Burnt exhaust valve).

Just wondering if anyone else has swapped in a lightning engine in their truck and found any problems?