6.4L VVT Hemi Engine Specs

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6.4L VVT Hemi Engine Overview

A V8 engine from Hemi engine variants that has special ability that can not find on the others Hemi engine before, this 6.4L VVT Hemi Engine has special capability that named with multiple displacements engine. This multiple displacement engine is an engine capability that make engine able to shut off automatically four cylinders when not needed, so at that time the engine only use 4 cylinders left, this multiple displacement technology will dramatically improve the fuel economy. This engine is came with eight-cylinder SRT high performance engine is a 90° V-Type, deep skirt, lightweight cast iron block with aluminum heads, single cam, overhead valves, and hydraulic roller lifters.  The VVT label that sticks on this engine named is came from Variable Valve Timing, surely this Variable Valve Timing is be the one technology that equipped at this 6.4L VVT Hemi Engine. The VVT system is using Oil Control Valve (OCV) to direct oil pressure to the camshaft phaser assembly. The camshaft phaser assembly advances and/or retards camshaft timing to improve engine performance, mid-range torque, idle quality, fuel economy and reduce emissions. The OCV is located under the intake manifold. Detailed about main specification of this engine, you can find on following table.

6.4L VVT Hemi Engine Specs

Beside the VVT technology, what else are having by this 6.4L VVT Hemi Engine, here they are the detailed specs

Specs Item Specs
Engine Type 6.4L VVT Hemi Engine
Engine Code 6.4L VVT Hemi
Displacement 6.4 litre

6410 cc

(391.162 cu in)

Transmission Type Automatic
Compression Ratio 10.9:1
Bore and Stroke (in.) 4.09 x 3.72
Valve configuration (pcs) OHV

2 valves per cylinder

16 Total valves

Valve System Variable Valve Timing
Fuel system SMPFI
Recommended Fuel Gasoline
Maximum engine speed 6400 rpm
Horsepower(SAE net@rpm) 476.5 PS (470 bhp) (350.5 kW)

at 6000 rpm

Torque (lb. ft. @ rpm) 637 Nm (470 ft·lb) (65 kgm)

at 4300 rpm

Fuel economy 14/23 US MPG EPA city/highway
Number of crankshaft bearings 5
Engine coolant Water
Cylinder Block Cast Iron
Cylinder head Aluminum Alloy
Other Features Variable Cam Timing (VCT) Cam Phasing System

Multi-Displacement System (MDS) (auto trans only)

High Flow Ports

Increased Maximum RPM

Combustion Chamber Shape

6.4L VVT Hemi Engine Applications

This engine is used for following vehicles

  • 2011 Dodge Challenger SRT8
  • Chrysler 300SRT8
  • Dodge Charger SRT8
  • Jeep Grand Cherokee SRT86.4L VVT Hemi Engine

www.allenginelist.com

One Thought on “6.4L VVT Hemi Engine Specs

  1. tom kline on October 29, 2013 at 8:15 pm said:

    to have torque and horsepower the same is impossible at different rpm’s . the conversion ratio for torque to horsepower is (torque x rpm /5250 = horsepower ) . with alittle knowledge of math one sees that at 5250 rpm’s you have 5250/5250 which equals 1. therefor torque then equals horsepower . so only at the rpm number of 5250 will torque and horsepower be the same .

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