Hemicar, I'm west coast. I am definitely going to hire
someone else to build this motor for me, but I will have input
on the design parameters. I would like to get a little better
handle on the cam. I "feel" 10:1 is probably safe ! If you
found the specs to that 9.5:1 572 that would be great but
I don't want to be a pest.

Cab, do you recall the cam in the 10.8 572 you built ?

Dragula, what is a typical cam you use in a 12:1 pump gas Hemi ?

Gsmopar, same question if don't mind, cam in your 11:1 Hemi ?

Quickd100, I really like that truck of yours, always like
reading about it. What cam in your 10.4 motor ?

**********

As long as I'm here typing, I'll throw this out. Because
of my design limit of 6000 RPM or so, and the fact that
it will be an aluminum block, I'm considering a hydraulic
roller cam and using titanium valves. The hydraulic cam
would take up lash from block growth, and the Ti valves
would allow using fairly light valvesprings to help out
the hyd lifters.

I don't really care about overall horsepower with this
motor, no specific goal, it will be healthy enough.
I look at it as being a torque generator.

Again, I want to say thanks for the guidance, there is
an amazing amount of collective knowledge on Moparts
compared to many other websites !