Hi all, It has been many years since I last posted but I have been lurking around. I inherited an old set of castings for an air compressor but it didn’t come with any plans. I think they came from a place called Casting Specialists but, as you can see in the photo, it’s hard to tell. Can anyone point me in the right direction? I’d like to build the air compressor or convert it into an engine or something. It would be a shame to let them just sit there unused. Thanks for your help.