Another gasoline engine for Ram’s Heavy Duty three-quarter ton truck line will find home in the 2014 Ram 2500 and 3500. The 6.4-liter HEMI (estimated 410 hp, 429 lb-ft of torque) joins the 5.7-liter HEMI (383 bhp, 400 lb-ft of torque); both will be mated to an automatic six-speed transmission. The 2014 Power Wagon will be offered with the 6.4-liter HEMI V-8 option, contributing to the Power Wagon’s off-road capabilities. (The Power Wagon will also benefit from new five-link rear suspension and a modified front three-link system.) The 6.4-liter HEMI is the largest displacement V-8 in its class. Improved low-end torque (without sacrificing high-end power) has been enabled through an active dual-runner-length manifold. Efficiency has been enhanced through cooled exhaust-gas recirculation (CEGR), variable-valve timing (VVT) and Chrysler’s trademark Fuel Save cylinder-deactivation technology. The 2014 Ram 2500 Heavy Duty starts at $29,600, plus $1,095 destination fee. The 6.4-liter HEMI option will be priced $1,495 greater than similarly equipped 5.7-liter HEMI-powered Rams.
6.4-Liter HEMI V-8
Availability: Available on 2200 and 3500
Type and Description: Eight cylinder, 90-degree V-type, liquid-cooled, with variable-valve timing (VVT)
Displacement: 392 cu. in.
Valve System: VVT, push-rod operated overhead valves (16, two-per-cylinder), eight de-activating and eight hydraulic lifters with roller finger followers
Fuel Injection: Sequential, multiport, electronic, returnless
Construction: Deep-skirt cast-iron block with cross-bolted main bear caps, 356 aluminum cylinder heads with hemispherical combustion chambers
Compression Ratio: 10.0:1
Power (SAE net): Estimated 410 @ 5,600 rpm
Torque (SAE net): 429 lb-ft at 4,000 rpm