In case this helps anyone else, I am enclosing pictures of the result of working with Griffin Radiators to build a radiator to support an LS3 in a 52 3100. While the frame is custom Art Morrison, it is supposed to be "bolt the body on the frame" fit for a standard 47 - 53 body. I will confirm that if I ever finish. The motor mounts are specific to LS3, but the fame support for the motor mounts would also be used for a standard AD motor (I THINK).
We had to cut the "top lip" off of the radiator frame and remove the "X" cross supports. Results below in pictures.
2 rows, downflow. 2 major differences between their standard radiator for a V8 in an AD truck and this version: 1. Standard has a 16 inch centered fan, this one has two 10 inch fans... I needed to maximize the distance between radiator complex (rad, shroud and fan) and front of engine... the 16 inch fan highest point was right at the furthest protrusion of the engine (the water pump shaft as I recall). 2. The upper end of the side mounting fins are recessed around 1.3 inches more towards the rear of the radiator, necessitating the trimming of the upper lip of the radiator frame, but leaving plenty of room for "other stuff" in the upper part of the engine such as air induction tube, etc.
Gib70 - Did you fabricate the shroud or was that part of the build by Griffin???
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
I had Griffin do it all... radiator, shroud and fans... In all humility, I would not be capable of doing any of that myself... but I am sure having fun learning to weld, grind and assemble!