Vik,
I have a 350 in my 52 with NP's as far as fan/radiator height.
And have no modifications to the floor or firewall that intrudes into the passenger compartment. check out my pics in the gallery.
if you want or need i can mail ya some close up pics & such
Tim


1952 Chevy Shortbed

Photos in Photobucket

If It Aint Broke Fix It Till It Is!