The Twin Turbo is over built
The Twin Turbo is over built to with stand the stress. Forged steel "I-beam" connecting rods, Forged steel crankshaft, 6-bolt main bearing caps and additional support ribs, and the list goes on. Currently there are almost a half million 3.5L Twin Turbo Ecoboosts F150's on the road today. Mine pulls like a mule.