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Chevrolet Performance ZZ572ci/620HP Base Engine
Capable of 620 horsepower at 5500 RPM and 650 ft/lbs of torque at 4500 RPM, Chevrolet Performance's ZZ572/620 is a long block engine assembly built around a tall deck, Gen VI, Bow Tie big block. It features a forged steel crankshaft, forged steel H-beam connecting rods, forged aluminum pistons, and much more! Cylinder heads have rectangular ports designed to produce a street-gas-friendly 9.6:1 compression ratio.