STOCK LS2 (W/ ADAPTERS)
Running the LS2 intake with rectangle-port adapters is not a good idea. It’s tough to beat the factory LS3 intake, but even tougher when adapting the cathedral-port intake to rec-port heads using adapters. Equipped with the adapted LS2 intake, the LS3 test motor produced just
551 hp and 499 lb-ft of torque.