Does anyone know if there's a radiator with a thicker core that will replace the factory single row without having to modify anything. Looking for a simple swap. Maybe one from an HD? Any help. 99 silverado 5.3 ecsb

 

You can upgrade to the larger radiator. 34" core vs. 27" core you have now.

 

BeCool makes a nice aftermarket unit too, that is a direct replacement.

 

The 2005 34" radiator was a direct swap for my 99'. The mounting holes are already there. It was only like $160 from the auto parts store. Of course, u need electric fans...

 

Not necessarily. You could buy the larger fan shroud and continue to use stock clutch fan.

 

use the 34 inch radiator works great in my truck

 

My truck use to over heat pulling a trailer when it was around 90 deg or hotter outside, I bought the 34 in 6.0 2500 hd rad and matching shroud, bolts rt in and never over heated again!!

 

SnakeOiler, my bad didn't know that!