66,
Yes the custom is aluminum. No it's not a Griffin because Griffin does not sell their cores. The car is not street driven any more but it cools real good at the track. About the time I get to the pits it's down to about 170 degrees.
If you get a custom aluminum made I would get them to make it the same exterior dimentions as the OEM radiator so you can use the factory shroud and fan. Why the flex fan? They don't cool as good as a factory clutch fan, have more drag and make more noise too. Air flow is very important in a street driven car. GM designed a very good system. With the exception of installing a Desert Cooler or an aluminum radiator I'd keep the factory set up on a street car.
Tim Corcoran
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65 LeMans 11.13@120
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Tim Corcoran
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