The failure occurred on cylinder 4. There are holes punched in both sides and the rear of the block. Head is relatively unscathed but cylinder 4 has bent valves. No spun bearings, crank journals and bearings look perfect so no lubrication issue. OEM pistons and connecting rods are the known weak link in these engines. Hard to tell if the rod or the piston failed first but the end result is the same.
