The Most Powerful Big Block Street Engine From Cheverolet Performance
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.

ZZ572/620 DELUXE TECH SPECS
Part Number:19331583
Engine Type: Chevy Tall Deck Big Block V8
Displacement (cu. in.): 572
Weight: 580
Horse Power: 620
Torque: 650
Trans*: C
Bore x Stroke (in.): 4.560 x 4.375
Block (P/N 19212195): Cast Iron with 4-bolt Main Caps
Crankshaft (P/N 88961554): Forged Steel
Connecting Rods (P/N 88962926): Forged Steel, Shot Peened
Pistons (P/N 88962925): Forged Aluminum
Camshaft Type (P/N 19210721): Hydraulic Roller
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
Balanced: Internal
Valve Size (in.): 2.250 Intake / 1.880 Exhaust; Stainless Steel
Compression Ratio: 9.6:1
Rocker Arms (P/N 12361323): Aluminum Roller Style
Rocker Arm Ratio: 1.7:1
Distributor (P/N 88961867): HEI
Carburetor (P/N 19170095): 850-cfm
Water Pump (P/N 19168602): Aluminum, Short Style
Spark Plugs and Wires: Included
Flexplate (P/N 12561217): 14"
Recommended Fuel: 92 Octane
Ignition Timing: Base 8° BTDC, 36° Total
Maximum Recommended rpm: 6000

INSTALLATION NOTES

• Due to crate fitment, the carburetor is shipped in a separate box and needs to be installed by an engine installer
• Clutch linkage boss is now drilled and tapped. When using cast-iron exhaust manifolds, lower head bolts may need to be replaced with bolts with shorter heads for clearance
• Requires addition of starter and fuel pump (not included)
• Gen VI tall-deck block has machined mechanical fuel pump boss
• Comes with a 14" automatic transmission flexplate. Requires internally balanced flywheel for manual transmission applications
• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine applications
• You do have a strong transmission and rear axle, don’t you?

ZZ572 Deluxe Warranty Detail PDF