compression has been checked right side 3 cylinders were 300,one glow plug wouldnt come out,left side was between160-260 and porcelin was missing on one of glow plugs,160 cyl was hit with air and was coming out intake,exhaust,crankcase,the mechanic looking at it most of damage caused by ether,low cylinder by bad injector,prices i have seen are $3500 and up on long block,$1200 for injectors,$600 or so for glow plugs and associated componets,add upper end oil pump and gaskets and various other stuff better off buying complete engine,hell i dont know would have more in rebuild than i have in truck,i could canibalize it and make my idi a 4x4,sucks because truck has alot of potential,not sure which way to go