NRE Alien Fuel Injected 572 – Hot Rod Series | 750 HP EFI Big Block

The NRE Alien Fuel Injected 572 Hot Rod Series delivers everything enthusiasts want from a modern big-block hot rod engine: brutal torque, instant throttle response, and the unmistakable Signature Alien Series look, all wrapped in a package that’s fully street-capable. Producing 750 horsepower at 6,300 RPM, this engine blends classic big-block attitude with advanced electronic fuel injection to create a powerplant that feels raw and aggressive while remaining refined and reliable.

At the center of this combination is the NRE Alien intake system, engineered with hidden injectors and sensors and an internal twin throttle body. With a total intake height of just 9 inches, this engine fits under most factory and custom hoods without the need for a tall cowl. A fully sequential, self-learning EFI system automatically adjusts for elevation and changing conditions, ensuring consistent drivability whether cruising locally or traveling long distances.

Performance & Driving Experience

This 572 cubic inch big block delivers massive torque everywhere in the RPM range, making the car feel instantly responsive the moment the throttle is touched. The custom NRE hydraulic roller camshaft provides a classic nasty hot rod idle while eliminating constant valve adjustments, allowing you to enjoy aggressive performance without added maintenance. The result is an engine that feels old-school and intimidating, yet behaves smoothly and predictably on the street.

Engine Block & Rotating Assembly

Block

• Dart Big Block Chevy

• 4.500″ bore

• Splayed main caps

• 2-piece rear main seal

Rotating Assembly

• Callies Magnum 4.5″ stroke 4340 forged crankshaft

• Callies 4340 forged H-beam connecting rods, 6.7″

• JE forged pistons, 10:1 compression

• Plasma moly piston rings

This forged rotating assembly is designed for strength, durability, and smooth power delivery in high-performance street applications.

Valvetrain & Timing Components

• Custom NRE hydraulic roller camshaft

• Hydraulic short-travel roller lifters

• T&D shaft rocker system

• Manton pushrods

• Cloyes timing chain

• Cast aluminum Milodon timing cover

The hydraulic roller valvetrain ensures aggressive performance with minimal wear and long-term reliability.

Cylinder Heads, Induction & Fuel System

Cylinder Heads

• Brodix 380 aluminum cylinder heads

• 2.300″ intake / 1.880″ exhaust Inconel valves

• PAC performance valve springs

Induction System

• NRE Alien intake manifold

• Internal twin throttle body

• Hidden injectors and sensors

• 9″ total intake height

Fuel Injection & Engine Management

• Flow-matched 60 lb/hr fuel injectors

• Holley fully sequential EFI system

• Integrated knock detection

• Complete wiring harness and sensors

This system delivers excellent cold starts, crisp throttle response, and automatic adjustment to elevation and climate changes.

Oil System, Ignition & Hardware

• Moroso 8-quart oil pan

• High-volume oil pump and pickup

• ATI harmonic damper

• Crank trigger ignition system

• Cam position sensor

• Fel-Pro head gaskets

• ARP fasteners throughout

• NRE billet fully CNC-machined valve covers

Specifications

• Engine Type: Big Block Chevy

• Displacement: 572 cubic inches

• Horsepower: 750 hp @ 6,300 RPM

• Fuel System: Electronic fuel injection

• ECU: Holley fully sequential EFI

• Compression Ratio: 10:1

• Camshaft: Hydraulic roller

• Intake Height: 9 inches

• Fuel Requirement: 91-octane pump gas

• Application: Hot rod, muscle car, street performance, restomod

• Build Type: Hot Rod Series, turnkey configuration