2020 Gmc 2500 6.6 Gas Specs. From what I have seen on other sites the 66 L8T in the 2020 25003500 is pulling off similar numbers. The standard is still a gas-powered 66-liter V-8 that generates 401 horsepower and 464 lb-ft of torque.
A cylinder bore of 4065 inches and a stroke of 386 yields 40076 cubic inches making this engine something of a modern 396 Chevy which displaced 402 cubic inches. The weight of the trucks alone negates the economy portion of the equation combined with an ever increasing height of stance and the aerodynamics up front of a brick. 2020 GMC Sierra 2500HD.
2020 RAM 2500---31 gal.
Jump to Latest Follow 1 - 6 of 6 Posts. 6-speed automatic wOD and auto-manual. The more recommended is the optional Duramax diesel 66-liter V-8. The displacement is bumped up to 66-liters and compression is increased to 108-to-1.
