3. I was under the assumption that an alum. radiator would disperse heat better and help w/ the cooling - Am I wrong?
Well Im not so sure....brass is a dam good conductor of heat and so is Aluminum
The brass radiator is way over built that it requires a restiction to run properly.
Check the xmas link my sig it you want to know about slow cruising ...doesnt go over 165 deg...and xmas here is in middle of summer...and no hi vol pump either.
Difference between...Well at the end of the day its sort of like asking if a kenworth or Mac truck would be best for towing a car transporter trailer...
With the brass , clutch fan , shroud, clean cores its simple to setup
The Al electric fans etc lots of posts here for when you run into problems.
And the timing at bottom end rpms is not over advanced or retarded...or the carb too lean
want to be able to cruise Woodward or any other small town parade and not overe heat.
So do you have a problem now?
or do you thing you MAY have a problem?
And If you thing you MAY have a problem, would it not be better to establish if you actual'y do have a problem?
THEN sort it out?....most proberly by getting the header tanks pulled on the radiator and cores cleaned.....make sure have the right shroud...new bottom hose, and the clutch is not sloppy on the bearings
Also check that at the rpms that u intend to cruise with, there is enough water flowing ...look inside the radiator at the flow and check against the rpms.
A simple pully size may do the trick.