Technical Engine dimensions, Hudson, stovebolt

I searched the forums and found 90% of what I needed already -- just two left. I'm making 3D models of some old engines. I need an exterior dimension of an early 50's Hudson 6 cylinder, and a Chevy stovebolt. Just about anything easily measurable would work. Length of block, head dimensions, etc. I only need one good measurement and I can scale the rest from there.

Thanks.