Strange how your curve chart doesn't match ANY of the engines listed in THEIR specs....
Torque is what matters here, and 401 ft lbs is sweet on the Toy.
The GM 6.0 is 360 ft lbs, and they offer optional 450 ftlbs (8.1) and 650 ftlbs on the turbodiesel
The Turdra looks like ass, and is a great truck for a woman, or any one who likes butt-ugly trucks.
Better luck next time.
4.0-liter DOHC EFI V6, 24-valve aluminum block with aluminum alloy head with VVT-i
236 hp @ 5200 rpm
266 lb.-ft. @ 4000 rpm
Bore and stroke: 3.70 x 3.74
Compression ratio: 10.0:1
Displacement: 3956 cc
Ignition system: DIS (Direct)
Emissions: ULEV II
Recommended fuel: 87 octane or higher - -
4.7-liter DOHC EFI V8, 32-valve aluminum block with aluminum alloy head with VVT-i
271 hp @ 5400 rpm
313 lb.-ft. @ 3400 rpm
Bore and stroke: 3.70 x 3.31
Compression ratio: 10.0:1
Displacement: 4664 cc
Ignition system: DIS (Direct)
Emissions: ULEV II
Recommended fuel: 87 octane or higher S S
5.7-liter DOHC EFI V8, 32-valve aluminum block with aluminum alloy head with Dual VVT-i
381 hp @ 5600 rpm
401 lb.-ft. @ 3600 rpm
Bore and stroke: 3.70 x 4.02
Compression ratio: 10.2:1
Displacement: 5663 cc
Ignition system: DIS (Direct)
Emissions: ULEV II
Recommended fuel: 87 octane or higher