I can't speak for a big block but I dropped a small block in my 52 frame using the Chassis Engineering mounts and it sits in there quite well. A set of block huggers will work but I will still have to move the steering box over about one inch, no more than 1 1/2 inches.
I am not sure unless I go look at the directions again but I think the engine mount on my small block was 15 1/8" from the middle of the CENTER rivet on the very front cross member. This is dead center of the mount.
Don't know if this helps but at least I tried!!

Oh, putting the engine where I did the instructions say I'll need to use the SMALL hei distributor or modify the firewall.


1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
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1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile