Quote Originally Posted by R Pope
One cooling problem not yet mentioned is one peculiar to our hobby. Stuffing a big engine in a tight engine room often leaves nowhere for the cooling air to get out after passing through the rad. Often the car is lowered, so the air can't get out underneath, either. Sometimes it will blow out the front, under the bumper, and be drawn back through the rad, reducing the cooling even more.
I put a Dodge Red Ram hemi in a '39 International and had to remove the inner fender panels to get it to cool. Ran it for a while with no hood, that worked too, but I didn't like the look.
two words my friend.... liquid nitrogen

Quote Originally Posted by wrenchinrick
my engine runs cool but i have alot of underhood heat also. i have a large hood scoop so I cut 10 large holes under it to let some air into the engine compartment.It seems to help some.I may drill some in the inner fender wells to let more out. the headers seem to produce alot of heat under the hood.I donot have a good solution to this problem.
if you used header bags, it would keep a lot of the header heat out of the engine compartment....... but there's only so much you can accomplish and they aren't exactly cheap