One of least replicated items of the 427 is the secondary air bleed line on the coolant reservoir. I can’t say I’ve ever seen a replica with one yet every original had them.   I am adding features like this to my new build, to go that extra step on my replica.  I chose to use a dual pass radiator, the radiator is divided in half, top and bottom, so the coolant goes across on the top set of tubes turns and comes back on the lower set of tubes. That extra time in the cooling fins makes a big difference in cooling capacity.  ThatRead More →