Hey guys, I've gotten to the point of maxxing out the cooling capacity of the stock GMT900 radiator in my truck with the addition of the 427, decent cam, turbo piping and all the other crap packed under the hood.

Do any of you know of a drop in all aluminum radiator with more cooling capacity than stock? I don't need one with the trans cooler or oil cooler end tanks on it anymore as all of that has already been addressed, but I will take what I can get.

Thanks,
-Robbie.

 

What thermostat are you running? What coolant? What are the temps doing

 

160 degree thermostat. 70/30 mix distilled water and GM Dex Cool. The temps idle at 190 on a cool night, and cruise at 178-182

At day time though with the A/C on it'll idle up to 216, and cruise at 205+

Too warm for my tastes for the kind of $ I have in the engine.

 

Looks like you've done everything right. And i agree those temps are too high.

im also running the 160 tstat, 70/30 mix and the aftermarket all aluminum 34" 2 row rad.

Its a beast of a cooling system with the oem fans and honestly is too much in cold temps. But its perfect in texas summer. Will run upper 160s going down the highway and idles where i have the fans come on at 184.

 

have you tried to get the heat out of the engine bay? tight quarters will always be hot reguardless of rad size

Cowl hood, less plastic parts, vents all would be helpful, heat shields and possibly try double wrapping things

 

who makes that radiator youre using?

 

China (I'm guessing - was $170 I think). Surprisingly good quality though, OEM fit and all.