1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis

[Lazzardkng]

Originally Posted by Clrussell

Did you use the factory intercooler/ radiator and everything off the 03? I guess it all fit between the grill and fan?

I upgraded the inter cooler that came with my BANKS system. But everything else is 2003. I used the 2003 radiator support so all of these and the fan shroud attach and fit as stock on the 2003. The just adapted the headlight buckets and fender attaching points from the 1970.
I'll post lots of pics during assembly once I take it apart to paint jams and firewall.

[Clrussell]

Originally Posted by Lazzardkng

I upgraded the inter cooler that came with my BANKS system. But everything else is 2003. I used the 2003 radiator support so all of these and the fan shroud attach and fit as stock on the 2003. The just adapted the headlight buckets and fender attaching points from the 1970.
I'll post lots of pics during assembly once I take it apart to paint jams and firewall.

Perfect thanks!