SilverBolt
Hired Gun
The 7.3L Godzilla with a Whipple makes more sense. The DOHC 5.2 S/C will take some cam work to make a decent truck engine. I would be willing to bet that you could buy 2-3 of the 7.3's for the cost of one 5.2. The torque on the 7.3 would be incredible.