F Y I guys. I am a forklift mechanic for a hyster dealer. What a job, all those inline chevys we are using! If you do find a 250 six or maybe a 153,181, or 3.0 4 cyl. The camshafts in these engines are dramatically different as they are profiled for industrial use in our forklifts. They have a strange power band on account of hydraulics and power shift trannys and such. Also some of them can only use marine parts internally and that can get pretty spendy. They are tougher than nails though!