I have just installed a big block in my 71 Z This was a small block car. My problem is that I do not have hood clearance and I want to use the stock hood not a cowl hood or a hood scoop. I know I can get the motor lower because there is 1 1/2 to 2 inches of clearance under the oil pan. The fan shroud also has room at the bottom and the fan is real tight at the top. I have looked for big block motor mounts from suppliers and the mounts on the motor and the same part number big block or small block (I think) If any one has information or tips the help is greatly needed.