- Engines & Components
- Engine - Assembled / Ready-to-Run
- Chevrolet Performance ZZ572/620 Deluxe 572ci/621HP Crate Engine
The Most Powerful Big-Block Street Engine from Chevrolet Performance
The ZZ572/620 is the ultimate expression of Chevrolet Performance's engineering capability. They 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.
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Aluminum rectangular-port heads with 310cc intake ports complement the airflow capability offered by the big-bore bottom end. They also feature 118cc raised exhaust ports and 118cc 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.
ZZ572/620 DELUXE TECH SPECS:
- Engine Type: Chevy Tall Deck Big-Block V-8
- Displacement: 572ci
- Bore x Stroke: 4.560'' x 4.375''
- Block: Cast-iron with four-bolt main caps
- Crankshaft: Forged steel
- Connecting Rods: Forged steel, shot-peened
- Pistons: Forged aluminum
- Camshaft Type: Hydraulic roller
- Camshaft Lift: .632'' intake / .632'' exhaust
- Camshaft Duration (@.050 in.): 254° intake / 264° exhaust
- Cylinder Heads: Aluminum rectangle port, 118cc combustion chambers
- Valve Size: 2.250'' intake / 1.880'' exhaust
- Compression Ratio: 9.6:1
- Rocker Arms: Aluminum roller rockers
- Rocker Arm Ratio: 1.7:1
- Distributor: HEI type
- Carburetor: 850 cfm
- Water Pump: Aluminum, short-style
- Spark Plugs and Wires: Included
- Flexplate: 14'' diameter
- Recommended Fuel: Premium pump (92 octane)
- Ignition Timing: 36° Total @ 4000 rpm
- Maximum Recommended RPM: 6000
- Balanced: Internal