572 Roots Blown Carbureted – Polished | Hot Rod Series | 1,000–1,150 HP

The 572 Roots Blown Carbureted – Polished Hot Rod Series engine is the definition of classic American muscle taken to its absolute extreme. With a fully polished roots blower setup, brutal instant torque, and a sound that announces itself blocks before you arrive, this engine delivers the raw, mechanical experience only a carbureted roots-blown big block can provide.

Making 1,000 horsepower on 91-octane pump gas and up to 1,150 horsepower on E85, this combination was engineered for street-driven reliability without sacrificing attitude. Low compression and a custom hydraulic roller camshaft allow smooth cruising, predictable throttle response, and the ability to rack up real street miles—while still unleashing explosive power on demand. If you’re a blower enthusiast, this is the look, sound, and feel that nothing else can replace.

Performance Overview

Roots-blown engines are known for instantaneous torque delivery, and this 572 BBC is no exception. Boost is available immediately, throttle response is razor sharp, and the polished 12-71 supercharger delivers unmistakable visual presence. Designed to idle cleanly, cruise comfortably, and hit hard when commanded, this engine blends old-school hot rod personality with modern build precision.

Block & Forged 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

• Oliver billet connecting rods, 6.700″ length

• Custom JE forged pistons, 9:1 compression, 2618 alloy

• Ductile iron piston rings

This forged foundation is built specifically to withstand sustained boost, aggressive throttle input, and long-term street use.

Valvetrain & Timing Components

• Custom NRE hydraulic roller camshaft

• Hydraulic short-travel lifters

• Comp Cams rocker arms

• Manton pushrods

• Cloyes timing chain

• Cast aluminum Milodon timing cover

The hydraulic roller valvetrain keeps maintenance minimal while delivering the aggressive blower-friendly cam profile that defines this engine’s sound and powerband.

Cylinder Heads, Induction & Supercharger System

Cylinder Heads

• Brodix 380 3Xtra CNC-ported aluminum heads

• 2.300″ intake / 1.880″ exhaust Inconel valves

• PAC valve springs

Induction & Supercharger

• The Blower Shop Competition intake manifold

• Billet The Blower Shop 12-71 roots supercharger (polished)

• Twin 950 CFM Holley HP carburetors

This classic carbureted roots setup delivers unmatched throttle response, unmistakable supercharged sound, and a show-stopping polished finish.

Oil System, Ignition & Supporting Hardware

• Moroso 8-quart oil pan

• High-volume oil pump and pickup

• ATI harmonic damper

• MSD crank trigger ignition

• MSD ignition control box

• Cometic MLX head gaskets

• ARP fasteners throughout

• NRE billet fully CNC-machined valve covers

Every supporting component is selected to ensure durability, stability under boost, and reliable street performance.

Key Specifications

• Engine Type: Roots-blown Big Block Chevy

• Displacement: 572 cubic inches

• Horsepower:

  • 1,000 hp on 91-octane pump gas

  • 1,150 hp on E85

• Compression Ratio: 9:1

• Fuel System: Carbureted

• Carburetors: Twin 950 Holley HP

• Supercharger: Billet 12-71 Roots (polished)

• Camshaft: Hydraulic roller

• Ignition: MSD crank trigger system

• Application: Hot rod, muscle car, street cruiser

• Series: Hot Rod Series

• Build Type: Turnkey roots-blown engine