I knew this was the place to ask! That Chevy 6 number looks pretty close and the OHC Jeep idea is a very interesting one! I had heard that the block they used was closely related to their flat head...you could use a belt to drive the cam which would be much easier to fabricate than a chain. Cam bearings might be an issue if I have to saw everything up to account for bore spacing...
thanks guys..this forum is the BEST!
Leif (Those mental wheels are spinning now!)