The engine cover of the 2014 Ram HD 6.4L Hemi

2014 Ram HD lineup gets retuned SRT 6.4L Hemi V8 with best in class power, new air suspension

While it had been rumored for quite some time that the 2014 Ram Heavy Duty lineup would soon benefit from a revised version of the 6.4L Hemi V8 from the SRT lineup, the Chrysler Group has announced the official specifications for the new 392 cubic inch heavy duty truck engine – making the 2014 Ram HD lineup the most powerful truck in the class powered by a gasoline engine.

The 2014 Ram Heavy Duty will continue to offer the 5.7L Hemi V8 and the mighty 6.7L Cummins Turbo Diesel inline 6 but new for the 2014 model year is a revised version of the 6.4L Hemi V8 that was previously only used in the high performance Street and Racing Technology (SRT) lineup. This new 6.4L truck Hemi packs 410 horsepower at 5,600rpm and 429lb-ft of torque at 4,000rpm so while the motor has been “detuned’ quite a bit from the 470 horsepower and 470lb-ft of torque enjoyed by Charger, Challenger, Grand Cherokee and Chrysler 300 SRT owners – this motor has been designed specifically for heavy duty truck use. More importantly, 410 horsepower and 429lb-ft of torque makes the 2014 Ram HD the most powerful heavy duty truck available on the market today. The most powerful gasoline engine option for the current Ford Super Duty pickup is the 6.2L V8 with 385hp and 405lb-ft of torque while the most powerful heavy duty GM truck with a gasoline engine offers just 360hp and 380lb-ft of torque. Also, the 6.4L Hemi comes with Chrysler’s fuel saver technology that shuts down half of the cylinders when cruising on the highway so in addition to offering big power – this new 392 cubic inch Hemi should offer solid fuel economy.

In addition to the new 6.4L Hemi V8, the 2014 Ram HD lineup will still be offered with the 5.7L Hemi V8 and the 6.7L Cummins Turbo Diesel engine in three different forms. The 5.7L Hemi packs 383 horsepower and 400lb-ft of torque while the 6.7L Cummins offers either 350 horsepower and 660lb-ft of torque, 370 horsepower and 800lb-ft of torque or 385 horsepower and 850lb-ft of torque depending on the configuration chosen. Both the 5.7L Hemi and 6.4L Hemi V8 gasoline engines come mated to a standard 6-speed automatic transmission while the Cummins is available with either a manual (350hp version) or a pair of automatics (370hp and 385hp versions).


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