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.
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
Find everything from the vital data about your engine’s capabilities to how to install it into your build.
*The Manufacturer's Suggested Retail Price excludes, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' .
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.
The Manufacturer's Suggested Retail Price excludes tax, shipping and installation.