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Your Crate Engine Experts!

*Engine Shown With Optional Upgrades

6.4L Gen III 392CI Hemi 550HP Engine

$15,995.00

Proformance Unlimited offers a full line of Gen III Hemi based turn-key drop in ready crate engines designed for hot rods and muscle cars. Where new school performance meets old school looks. We have developed a complete line of fuel injected Late Model Hemi based power plants to fit almost everyone’s needs. If you don’t see something you want give us a call and we will design it for you. Our vision on these engines is to bring back the really cool looks from yesteryears engines with today’s reliability.

0.16395 0.16395
4.69054 4.69054
16000.04001 16000.04001
15995.00000 15995.00000
15977.61984 15977.61984
7134.41424 7134.41424

Engine Build Specifications:

  • Dodge Gen III Hemi 392CI 550HP Crate Engine:
  • 6.4L 392CI Gen III HEMI BGE Block
  • Block Is Honed With Deck Plate
  • Mains Have Been Aligned
  • Block Has Been Square Decked
  • Cam Bearings Installed
  • Gen 3 6.4L HEMI block
  • Steel 3.720 Stroke Crankshaft
  • I-Beam Connecting Rods
  • Performance Pistons
  • Rod And Main Bearing
  • Performance Rings Hand Filed To Match Application
  • The Complete Rotating Assembly Will Be Balanced (Internal)
  • Performance Camshaft Designed For Street Use
  • Cam Phaser Lock Out Kit
  • Three-piece Timing Set
  • Timing Chain Tensioner Kit
  • Hydraulic Roller Lifters
  • Chrysler Performance Roller Lifter Yokes
  • Aluminum Cylinder Heads
  • Valve Springs And Retainers (to match camshaft)
  • Push Rods
  • Shaft Mount Rocker Arms
  • Oil Pump
  • Oil Pick Up (To Match Application)
  • Pro Touring Oil Pan (To Match Application)
  • Dipstick And Tube
  • Aluminum Timing Cover
  • Engine will Be Assembled With All New Bolts
  • Performance Gaskets
  • Harmonic Balancer
  • Valve Covers
  • Spark Plugs
  • Single Plane Intake Manifold (Holley)
  • 4BBL 4150 Style Throttle Body
  • Gen III Hemi Style Coil Packs
  • Calibrated ECU (Holley Terminator X)
  • Main ECM Engine Wiring Harness
  • Coil Pack Harness
  • Fuel Injector Harness
  • Wide Ban O2 Sensor
  • Intake Air Temperature Sensor
  • Crankshaft Position Sensor
  • Camshaft Position Sensor
  • Engine Coolant Temperature Sensor
  • Manifold Air Pressure Sensor
  • Oil And Filter
  • Fuel Injectors
  • Engines Will Be Photo Documented During The Building Process
  • Engine will be hot run tested
  • 2 Year Unlimited Millage Warranty
Request A Personalized Quote
0.16395 0.16395
4.69054 4.69054
16000.04001 16000.04001
15995.00000 15995.00000
15977.61984 15977.61984
7134.41424 7134.41424

Customize Your Hemi Crate Engine