Ok mated the motor with the Allison pulled the grill out of the truck and slid the motor and transmission back in and put a strait edge a cross where the radiator will sit so I could see how much room I will have for a fan. Yheehaw it looks as if my heavy duty clutch fan will sit ½” from the radiator and the factory fan shroud should fit perfect as long as I measured correctly it could not have worked better. I now have enough room at the rear of the motor not only for the HEI distributor but I can run tall valve covers now. Then while I was surfing the net and stopped buy Speedway Motors I found this motor mount that will work perfect. http://www.speedwaymotors.com/p/6726,971_1...gine-Mount.html
This truck should be on the road about mid summer now that will be without the new paint and A/C of course.