The ZZ572/620 is the ultimate expression of Chevrolet Performance’s engineering capability.
We build the ZZ572 with huge 4.560-inch bores and add a forged 4.375-inch-stroke crankshaft. To make sure those cylinders are packed with every cubic centimeter’s worth of atmosphere, we use a camshaft with incredible 0.632/0.632-inch lift and 254°/264° duration specifications.
Aluminum rectangular-port heads with 310-cc intake passages complement the airflow capability offered by the big-bore bottom end. They also feature 118-cc raised exhaust ports and 118-cc combustion chambers. The valves are big, too — measuring 2.250 inches on the intake side and 1.880 inches on the exhausts.
Chevrolet Performance delivers the ZZ572/620 Deluxe with an 850-cfm carburetor, HEI distributor, aluminum water pump, and distinctive orange powder-coated valve covers that proudly proclaim the 572 legend.
For the builder who wants the foundation of this Big-Block powerhouse, but wants to finish it with the induction system of his choice, we offer the ZZ572/620 Base engine P/N 12498792. It comes with the bottom end fully assembled — including the forged crankshaft, rods, and pistons — along with the unique 0.632-inch-lift roller camshaft.
Chevy Tall Deck Big-Block V-8
Displacement (cu. in.):
Bore x Stroke (in.):
4.560 x 4.375
Block (P/N 19212195):
Cast-iron with four-bolt main caps
Crankshaft (P/N 88961554):
Connecting Rods (P/N 88962926):
Forged steel, shot peened
Pistons (P/N 88962925):
Camshaft Type (P/N 19210721):
Camshaft Lift (in.):
.632 intake / .632 exhaust
Camshaft Duration (@.050 in.):
254° intake / 264° exhaust
Cylinder Heads (P/N 12499255):
Aluminum rectangular port, 118-cc chambers
Valve Size (in.):
2.250 intake / 1.880 exhaust; stainless steel
Rocker Arms (P/N 12361323):
Aluminum roller style
Rocker Arm Ratio:
Distributor (P/N 88961867):
Carburetor (P/N 19170095):
Water Pump (P/N 19168602):
Spark Plugs and Wires:
Flexplate (P/N 12561217):
Base 8° BTDC, 36° Total
Maximum Recommended rpm:
Already own one, but lost some of the paperwork? We’ve got you covered with downloads and links for some of the more important documents below. You’ll find everything from the vital data about your engine’s capabilities to how to install it into your build, even all of the warranty information should you need to make a claim. And don’t forget, the best way we can make sure to get you the latest information on your specific part is to tell us which one you have by registering your engine. No matter what stage of your build you’re in — from shopping for the right part to that part having turned in a few miles — we have the information you need.
Download a catalog for a full listing of components and related parts.
* The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges. Click here to see the 2015 City Express destination freight charge. Click here to see the 2015 Colorado destination freight charge.
***The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Includes destination freight charge and gas guzzler tax.
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.
To allow you to do an accurate price comparison with prices featured on other Internet sites, GM provides Internet pricing both with and without the Destination Freight Charge (see prices including Destination Freight Charge below). To get full pricing details, go to our Build Your Own section.