SRT® 6.4L HEMI® engine

Part # DIR68303090AA



SRT 6.4L HEMI engine

Features: 485 horsepower and 475 lb-ft of torque. New engine assembly, not a reman. Includes complete engine assembly with water pump, fly wheel and clutch, front sump oil pan, intake manifold with throttle body, fuel injectors and coil packs.


Engine Type GEN III HEMI® V8
Displacement 392 cu in
Bore 103.9 mm
Stroke 94.6 mm
Block (53021214DR) Cast Iron with 4 Bolt Powder Metal Caps
Crank Material Forged Steel
Connecting Rods Powdered Metal Floating Pin
Piston Material Hypereutectic Aluminum
Camshaft Nodular Iron
Valve/Lift Duration @ 0.15 mm (.006") Int: 15.0 mm (0.591") – 288 deg.
Exh: 14.0 mm (0.551") – 292 deg.
Cylinder Heads Aluminum, HEMIspherical Chamber
Intake Valve Size 54.3 mm
Exhaust Valve Size 42 mm
Compression Ratio 10.9:1
Peak RPM 6400
Recommended Fuel Premium

Add ons


Wiring Harness and Controller


  • Chassis and Engine harness
  • Acclelerator pedal
  • Oxygen sensor
  • Powertrain control module
  • Power distribution center
  • Charge air temp sensor

 Hemi wiring harness and computer


Oil pan and pickup

  • Dragster style is 7qt and 6" tall and fits Magnum Force Suspensions Hemi oil pan
  • A,B,C,E Body pans are 6qt and 7"tall and fit Magnum Force Suspensions as well as stock suspensionsHemi oil pan


Oil Filter Adapter 45 degree

  • Mandatory on A,B,C,E stock suspensions as well as Magnum Force Suspensions for clearance to the rack or stock k-member

 Hemi oil filter adapter



  Select for use with stock suspension or Magnum Force Suspension

  • 6.4L:  2.0" O.D. tubes / merged into 3.5" collectors
  • 3/8" thick laser-cut header and collector flanges, contoured for a leak free fit
  • Includes:  1/16" Header & Collector Gaskets, Header Bolts (16pcs) and Reducers/Adapters for hook-up to your Exhaust System.

Fits Applications:  
1967-1976 "A"-bodies
1962-1974 "B"-bodies
1970-1974 "E"-bodies

 Hemi headers


Alternator, pulleys, and belt

It is required

 Hemi alternatorHemi alternator


Motor Mounts - Adapt 3rd gen Hemi to Magnum Force K-member or late model stock K-member

Hemi Motor Mounts

Hemi Motor Mounts

have a question?

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Item# Status Description
DIR68303090AA In Stock

SRT® 6.4L HEMI® engine


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