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Mopar Performance

Mopar Performance 392/6.4L 485HP Hemi Crate Engine

Part # 68303090AA Be the first to write a review

485HP / 475 lb.-ft Torque 392 Hemi Crate Engine

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Mopar Performance 392/6.4L 485HP Hemi Crate Engine

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Step up to the next level of performance with the SRT® 6.4L HEMI® Engine. With 485 hp and 475 lb.-ft. of torque, this complete engine assembly includes a water pump, flywheel and clutch, front sump oil pan, intake manifold with throttle body, fuel injectors and coil packs.

Features:

  • 485HP / 475 lbs/ft Torque
  • Displacement: 392 CID, 6.4L
  • Bore x Stroke: 103.9mm x 94.6mm
  • Compression Ratio: 10.9:1
  • Block: Cast Iron with 4-bolt Powder Metal Main Caps
  • Cylinder Heads: Aluminum, Hemispherical Chamber
  • Maximum Recommended RPM: 6,400
  • Crankshaft: Forged Steel
  • Connecting Rods: Powdered Metal with Floating Pins
  • Pistons: Hypereutectic Aluminum
  • Camshaft: Nodular Iron Hydraulic Roller
  • Valves: Intake –54.3mm, Exhaust – 42mm
ApplicationGen III Hemi
Brand Mopar Performance
Emission Code8
Engine Size6.4L / 392 c.i.
Factory Rated HP485
Oil System TypeWet Sump
Product TypeCrate Engine
Sump LocationFront
Manufacturer Part Number68303090AA
Part Number68303090AA
8

This product is engineered to facilitate the installation of a later model, emissions friendly engine into a vintage / classic vehicle. Federal guidelines indicate that an engine swap is allowable if one or more of the following conditions apply:

  • If there is a reasonable basis for knowing that emissions are not adversely affected as described in the EPA Tampering Policy dated November 23rd, 2020
  • The resulting vehicle is identical (with regard to all emissions related parts, engine design parameters and engine calibrations) to a certified configuration of the same or newer model year as the vehicle chassis
  • The vehicle is a uncontrolled vehicle - Vehicles that were manufactured before emission control regulations took effect are called uncontrolled vehicles. Aftermarket parts regulations and anti-tampering laws do not apply to these vehicles
  • An EO legal engine swap kit is utilized (such as a GM EROD)
  • The vehicle is being used for Competition Use Only - Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

Consumers are responsible for complying with laws prohibiting tampering, and for ensuring that modified vehicles are operated in a manner that complies with applicable laws.

Motor vehicle emissions standards are intended to help achieve and maintain air quality goals that benefit human health and the environment. The U.S. Environmental Protection Agency, the California Air Resources Board, Environment Canada, and other regulatory agencies prohibit the operation of vehicles on public roads that violate applicable emissions standards. The alteration of certified production vehicles to modify, remove, or render inoperable emissions control hardware or software, known as "tampering" is prohibited by the U.S. Clean Air Act and other laws. Tampering with motor vehicles emissions control systems is punishable by substantial monetary penalties.

Holley is committed to performance parts that allow enthusiasts to modify their vehicles and meet emission requirements. The information provided here is intended to provide general guidance of interest to most consumers. This guidance may not apply to all vehicles or all situations. It is up to each consumer to evaluate his or her own situation and take the steps necessary to comply with applicable laws. The websites listed below have more information about regulations and policies pertaining to motor vehicle emissions. You should also check the regulations applicable to your local area.

EPA Website
https://www.epa.gov/enforcement/epa-tampering-policy-epa-enforcement-policy-vehicle-and-engine-tampering-and-aftermarket

CARB Website
https://ww3.arb.ca.gov/msprog/aftermkt/aftermkt.htm

Limited Supply - No more will be available once this engine is sold out.
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    Some parts are not legal for use in California or other states with similar regulations.