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Chevrolet Performance ZZ572ci/620HP Engine
Built around an all-new Gen VI tall deck Bow Tie big block, the Chevrolet Performance ZZ572/620 Deluxe Engine features a forged steel crankshaft, forged steel H-beam connecting rods, forged aluminum pistons with full-floating wrist pins, and aluminum cylinder heads. The cylinder heads have redesigned rectangular ports that produce a street-gas-friendly 9.6 to 1 compression ratio with substantial horsepower and torque. The ZZ572 engine assembly is capable of 620 horsepower at 5500 RPM and 650 ft/lbs torque at 4500 RPM.
Sportsman Tall Deck Gen VI Bow Tie Block
4.560'' Bore x 4.375'' Stroke
1-Piece Rear Main Seal
Forged 4340 Steel Crankshaft
Forged 4340 Steel H-Beam Connecting Rods
Forged Aluminum Pistons
Plasma Moly Piston Rings
Hydraulic Roller Camshaft
Camshaft Lift: .632" Intake/Exhaust
Camshaft Duration at .050": 254° Intake, 264° Exhaust