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Reply to "The never ending cooling saga"

Agree with David WRT the mods, especially the self-bleeding GP swirl/overflow tank modification - actually I believe this configuration was how the GT-40s were configured, and was a Carroll Smith setup.

Anyway, I run this config on my cast iron blocked / headed engine (dyno’ed at 425 HP).

My engine builder added head bleeds running from the rear of the heads to the overflow tank (which is under suction).

These mods gives automatic air removal from the radiator, swirl tank, and both heads.

It seems to work well for me, with no spewing coolant, and no boiling sounds in Tucson.

I run a Hall Phoenix radiator (brass), Meriah fans with no shroud (other than the one connecting all the blades), a 185* RobertShaw t-stat with the brass plate installed, and a Stewart Stage I water pump (from Summit) - it has a cast iron body.

The cooling system mod is best implemented with the engine out of the car - which I’m sure you’re hoping not to do.

Good luck with this…  

Chuck

Last edited by rocky
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