The challenge? Design a gas-powered V8 built for strenuous duty, hauling heavy loads day in and day out, with diesel-like durability, performance and power. The solution: the all-new overhead valve, port fuel-injected 7.3L. This big-block “pushrod” V8 with variable-camshaft timing reaches peak power with optimal air-fuel ratio in the low rpm range, providing the responsiveness and that power commercial applications require. And for the durability also required, the 7.3L features a new cast iron block with four-bolt and cross-bolted main bearings plus a forged steel crankshaft. Want the most powerful and largest gas V8, with best-in-class 350 HP and 468 lbs.-ft of torque, in a heavy-duty pickup?* Here it is.