Weekend Big block swap

I did a mock up install of my 400/470 with eddy heads and stock valve covers, the A/C motor left plenty of room to remove the valve cover so I tried a mopar cast cover which also cleared. The stock location manual brake booster wasn't even close to the valve cover on the drivers side. I don't know about the headmans, but the shummy' tri-y's cleared the power steering easily. The only tight spot is radiator clearance, I had to desolder and relocate the stock 3 core brass radiator side supports to allow the radiator to sit 3/8 inch closer to the radiator support and use the jaguar fan clutch.