NRE Alien Fuel Injected 572 Big Block Chevy – 700 HP EFI Hot Rod Engine

The NRE Alien Fuel Injected 572 delivers classic big-block attitude paired with modern electronic precision. Producing 700 horsepower at 6,100 RPM, this engine offers explosive throttle response and massive torque throughout the RPM range while maintaining street-friendly manners. Designed for enthusiasts who want an aggressive hot rod sound without sacrificing drivability, this package blends old-school muscle with new-school technology.

The signature NRE Alien intake system gives this engine its unmistakable appearance while keeping total intake height to just 9 inches, allowing it to fit under most factory and custom hoods without the need for a tall cowl. Fully sequential electronic fuel injection and a self-learning ECU allow the engine to automatically adapt to changes in elevation, temperature, and load, making it ideal for real-world street use, road trips, and performance cruising.

Performance Characteristics & Driving Experience

This 572 cubic inch big block is engineered for instant response and effortless torque. The custom NRE hydraulic roller camshaft delivers a choppy, authoritative idle while remaining maintenance-free, eliminating valve adjustments. Throttle response is sharp and immediate, giving the engine a lively feel that reacts instantly to driver input. Whether installed in a classic muscle car, street rod, pro-touring build, or custom hot rod, this engine provides a commanding presence both visually and acoustically.

Engine Block & Rotating Assembly

Block

• Dart big block Chevy

• 4.500″ bore

• Splayed main caps

• 2-piece rear main seal

Rotating Assembly

• Crankshaft: Callies Magnum 4.5″ stroke, 4340 forged

• Connecting Rods: Callies 4340 forged H-beam, 6.7″

• Pistons: JE forged pistons, 10:1 compression

• Piston Rings: Plasma moly

This premium forged rotating assembly ensures long-term durability, smooth operation, and the strength required for high-torque street performance.

Valvetrain & Timing Components

• Camshaft: Custom NRE hydraulic roller cam

• Lifters: Hydraulic short-travel roller lifters

• Rocker Arms: Comp Cams shaft rocker system

• Pushrods: Trend

• Timing Chain: Cloyes

• Timing Cover: Cast aluminum Milodon

The hydraulic roller valvetrain provides reliability, reduced maintenance, and consistent performance across the RPM range.

Cylinder Heads, Induction & Fuel System

Cylinder Heads

• Brodix 360 aluminum heads

• 2.300″ intake / 1.880″ exhaust Inconel valves

• PAC valve springs

Induction System

• NRE Alien intake manifold

• Hidden injectors and sensors

• Internal twin throttle body

• Ultra-low 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 advanced EFI system provides smooth cold starts, consistent fueling, and automatic adaptation to different driving conditions.

Oil System, Ignition & Finishing Components

Oil System

• Moroso oil pan

• High-volume oil pump and pickup

Ignition

• Crank trigger ignition system

• Cam position sensor

Sealing & Hardware

• Fel-Pro head gaskets

• ARP fasteners throughout

Valve Covers

• NRE billet fully CNC-machined valve covers

Key Specifications