MOPAR OEM 6.4L 392ci LONG MOTOR 485HP #68293008AB
$9,500.00
Mopar #68293008AB – 6.4L HEMI® 485hp Long Motor
Sunset Speed Approved | Genuine OEM Replacement
The Mopar #68293008AB 6.4L HEMI® Long Motor is a
brand-new genuine OEM factory long block, supplied and supported by
Sunset Speed.
This engine is the ideal direct replacement for failed or worn
6.4L HEMI engines, delivering factory reliability, drivability, and compatibility.
Built to original Mopar specifications, this long motor provides a
zero-kilometre foundation, suitable for stock replacements or as a strong
base for future performance upgrades.
What’s Included
Genuine OEM Mopar long motor assembly
Brand new BGE engine block with factory rotating assembly
Cylinder heads installed
Valvetrain fully assembled
Long motor only. External components are not included.
What’s Not Included
Intake manifold and throttle body
Exhaust manifolds / headers
Fuel system components
Sensors, wiring loom, and ECU
Oil pan and front accessory drive
Existing components are typically reused, or Sunset Speed can supply upgraded
options if required.
Engine Specifications
Engine: 6.4L (392) HEMI® V8
Condition: Brand new OEM
Assembly: Factory assembled
Calibration: Compatible with stock ECU
Application: Road / performance street use
Common Vehicle Applications
Dodge Challenger SRT / SRT 392
Dodge Charger SRT / SRT 392
Chrysler 300 SRT
Jeep Grand Cherokee SRT
Fitment varies by model year and configuration.
Fitment confirmation is required prior to purchase.
Why Buy From Sunset Speed
Genuine Mopar supply – no rebuilt or remanufactured engines
Professional installation available at our Port Kennedy workshop
Over 20 years of high-performance engine experience
Optional upgrade pathways into Sunset Speed engine tiers
Local Australian support and after-sales service
We don’t just sell engines — we install them, support them, and stand behind them.
Installation & Upgrade Options
Professional installation strongly recommended
Optional upgrades while engine is out of the vehicle:
Performance camshaft packages
Oil system upgrades
Induction and exhaust solutions
Custom tuning support
Ask us about future-proofing your engine before installation.
Shipping & Important Information
Engine freight shipping required
Workshop installation packages available – enquire for pricing
Sunset Speed – Packages That Just Work
Port Kennedy, Western Australia
OEM Replacement | Performance Upgrades | Engine Builds
6.4 Hemi Boost Ready Short Motor - Builder Series
$9,600.00
Here at Sunset Speed we are proud to offer Professional Performance engine packages to our customers.
Here we have a 6.4 Gen 3 Hemi Builder Series "BOOST READY" package that's perfect for the home builder that wants to assemble their own engine and have the piece of mind with an 800hp+ capable short motor that handles what you want to throw at it!
- OEM 6.4 ( NON BGE ) ENGINE BLOCK
- OEM 6.4 CRANKSHAFT ( WITH 2 PIECES OF HEAVY METAL FITTED, BALANCED & POLISHED )
- CP BULLET .010" FORGED PISTON & STEEL TOP RINGSET
- MOLNAR "POWER ADDER" 6.200" H-BEAM CONRODS ( ARP2000 BOLTS )
- ARP MAIN STUDS
- ACL RACE SERIES MAIN & BIGEND BEARINGS
The great things about these packages is that all the hard work is done and with the correct tools all you have to do is assemble it.. All Machine work has been carried out on High End CNC machine shop tooling , Daimond honed, Decked, Align Honed, Balanced & Blueprinted..
All clearances have been set, so all thats left is to ASSEMBLE!
***** CORE CHARGES APPLY *****