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Ram HD 6.4 official (UPDATED)

by David Zatz on

Today, Ram CEO Reid Bigland officially announced the 6.4 liter gasoline engine’s availability in all Ram HD trucks from the Ram 2500 to Ram 5500; bringing in the gasoline engine will dramatically increase the competitiveness of Ram 2500 and 3500, according to the company.

Rated at 470 hp in SRT cars, but retuned to meet the needs of truck buyers, the new 6.4 liter gasoline engine produces 410 horsepower and 429 lb-ft of torque.

This version of the 6.4L HEMI was, according to a Ram engineer, designed from the ground up for trucks; it includes an active runner intake, for both low end torque and high end power. The power ratings are best in class.  It delivers the same torque as a key competitor, but at lower engine speeds.

The engine has a cooled EGR system for greater efficiency, cylinder deactivation for economy, PVC integrated into the intake, and a floating pin on the systems.  Sodium filled exhaust valves and tough valve seat material, stainless steel exhaust gaskets and fasteners, and oil jets for cooling the pistons add to durability. The engine has a cast iron block and forged steel crank.

The company also announced that the link/coil rear suspension design of the Ram 1500 will be used in the Ram 2500 as well; this will, according to a company spokesman, dramatically improve the pickups’ handling and ride, without reducing cargo or towing capacity. The Ram 2500 will also have an optional active air suspension. The RAM 3500 continues with the rear Hotchkiss suspension setup, but will also offer a supplemental air suspension on single rear wheel and dual real wheel setups. Adding the air bags allows the use of softer leaf springs. When needed the air bags automatically fill to level the truck and improve ride and stability.

For 2014, the Ram Heavy Duty retains the highest level of capability with best-in-class towing, best-in-class payload and a best-in-class Gross Combined Weight Rating. The 2014 Ram 2500 Heavy Duty starts at $29,600, plus $1,095 destination. The 6.4-liter Hemi option is $1,495.

David Zatz founded Allpar in 1998 (based on a site he had begun in 1993-94), after years of writing reviews for retail trades. He has been quoted by the New York Times, the Daily Telegraph, the Detroit News, and USA Today. Before making Allpar a full-time career, he was a consultant in organizational psychology. You can reach him by using our contact form (much preferred) or by calling (313) 766-2304

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