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727 HP

@6300 RPM



680 LB-FT

@4900 RPM

Our baddest, most powerful Big-Block racing engine is ready for the strip

It is the king of all rat engines and is capable of pulling your bracket racer or heads-up challenger down the 1320 in the 9-second range.


The ZZ572/720R’s true value lies in its ready-to-run status when delivered. Rather than waiting weeks for a racing engine shop to build a custom combination, we deliver the ZZ572/720R fully assembled. Just bolt on the included Dominator-style 1150-cfm carburetor, along with a starter and fuel pump (not included), and you’re ready to go.


The ZZ572/720R is built with the best stuff we can find, including an all-forged rotating assembly, rectangular-port aluminum cylinder heads with 113-cc intake ports, and 2.25/1.88-inch valves. There’s also a solid roller camshaft with 0.714/0.714-inch lift.


If you’re building the ultimate dual-purpose car, the ZZ572/720R is suitable for limited forays on the street. It has a 12.0:1 compression ratio, so make sure you’ve got access to 110-octane gasoline before hitting the local cruise night.


Connect & Cruise Powertrain System

Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles. Connect and Cruise packages are available for a wide variety of crate engines which can be paired with an automatic or manual transmission.

Tech Specs

Part Number: 19331585

Engine Type: Chevy Tall Deck Big-Block V-8

Displacement (cu. in.): 572

Bore x Stroke (in.): 4.560 x 4.375

Block (P/N 19212195): Cast-iron with four-bolt main caps

Crankshaft (P/N 88961554): Forged steel

Connecting Rods (P/N 88962926): Forged steel, shot peened

Pistons (P/N 88963227): Forged aluminum

Camshaft Type (P/N 19210722): Mechanical roller

Camshaft Lift (in.): .714 intake / .714 exhaust

Camshaft Duration (@.050 in.): 278° intake / 282° exhaust

Cylinder Heads (P/N 88961160): Aluminum rectangular port, 118-cc chambers

Valve Size (in.): 2.250 intake / 1.880 exhaust stainless steel

Compression Ratio: 12:1

Rocker Arms (P/N 12361323): Aluminum, roller style

Rocker Arm Ratio: 1.7:1

Distributor (P/N 10093387): Electronic ignition

Carburetor (P/N 19170096): 1150-cfm Dominator

Water Pump (P/N 19168602): Aluminum, short-style

Spark Plugs and Wires: Included

Recommended Fuel: 110-octane race gas

Ignition Timing: Base 8° BTDC, 36° Total

Maximum Recommended rpm: 6750

Balanced: Internal

Installation Guides

Find everything from the vital data about your engine’s capabilities to how to install it into your build.

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.

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