NRE Naturally Aspirated 572 BBC – Hot Rod Series | 750 HP Turn-Key Big Block

The NRE Naturally Aspirated 572 BBC Hot Rod Series is a purpose-built big block for enthusiasts who want authentic hot rod attitude with modern reliability. Producing 750 horsepower, this engine delivers instant throttle response and massive torque across the entire RPM range while remaining completely street-friendly. Designed as a true workhorse, it runs comfortably on 91-octane pump gas and thrives in real-world driving situations without sacrificing the aggressive sound and feel that define a classic hot rod.

This is a fully turn-key, dyno-tested, and broken-in engine, built to deliver consistent performance from the moment it’s installed. The custom NRE hydraulic roller camshaft provides a nasty idle and strong mid-range power while minimizing maintenance, allowing you to enjoy the engine without constant valve adjustments. Whether installed in a muscle car, street rod, restomod, or pro-touring build, this 572 BBC delivers raw power with refined behavior.

Performance & Driving Experience

With its large displacement and carefully matched components, the Naturally Aspirated 572 produces strong low-end torque and relentless pull through the RPM range. Throttle response is immediate and predictable, making the engine enjoyable for both spirited driving and relaxed cruising. The hydraulic roller valvetrain enhances durability and ensures smooth operation for long street miles while still delivering aggressive performance when pushed.

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 engineered for strength, longevity, and smooth power delivery under sustained street use.

Valvetrain & Timing Components

• Custom NRE hydraulic roller camshaft

• Hydraulic short-travel roller lifters

• Comp Cams shaft rocker system

• Manton pushrods

• Cloyes timing chain

• Cast aluminum Milodon timing cover

The hydraulic roller setup provides aggressive cam profiles with reduced wear and minimal maintenance.

Cylinder Heads, Induction & Fuel System

Cylinder Heads

• Brodix 380 CNC aluminum cylinder heads

• 2.350″ intake / 1.880″ exhaust Inconel valves

• PAC performance valve springs

Induction System

• Brodix single-plane 4500 intake manifold

Fuel & Ignition

• 1050 CFM Holley Dominator carburetor

• MSD Pro Billet ignition system

This combination maximizes airflow, ensures crisp throttle response, and delivers consistent fueling across the RPM range.

Oil System, Hardware & Finishing Details

• Moroso 8-quart oil pan

• High-volume oil pump and pickup

• ATI harmonic damper

• Fel-Pro head gaskets

• ARP fasteners throughout

• NRE billet fully CNC-machined valve covers

Exhaust: Headers shown in photos are not included in the listed pricing.

Specifications

• Engine Type: Big Block Chevy

• Displacement: 572 cubic inches

• Horsepower: 750 hp

• Fuel Requirement: 91-octane pump gas

• Induction: Naturally aspirated, carbureted

• Camshaft: Hydraulic roller

• Compression Ratio: 10:1

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

• Build Status: Fully assembled, broken-in, and dyno tuned