Nothing.Im going to make a phone call and tell Ralph to look at my pics or ill send them to him and then call him.Hes the only one i can think off that might have any info on this engine.Other than i probably have the only original one made.Since i have serial #1.Im going to be ordering the square block this week and get back on it.I also have some G10 board coming to make the intake adaptors.Should be here in a few days.The center section is just going to be an adaptor to hold both cases together.My original has a bearing in the middle.Theres quite a little bit of maching done.