I have a SEEL A-kit cylinder with 6 stud VHM head and special high dollar pipe that all comes together as a kit. I can't remember the brand of the pipe but it is the good kind that is sectioned together a bazillion times. I bought it for Tyler as we were coming up and many of the fast kids out here were running A-kit stuff. When he was good enough to use it, our main competiton wasn't running one, so we didn't either.
Just saw this, I will get you some info, after I make sure what I still have. My trailer was broken into, and I'm 99% sure I still have the cylinder, as I saw the box while cleaning out the trailer, but the VHM head box felt light when I pulled it out, but I didn't open it. Also, it was purchased used, in case I made it sound new above. I bought a brand new piston and fired it up for a heat cycle and then reboxed it, so we would have it ready to go if something stuck during the weekend and I had to quickly put this on in a pinch.