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Chevrolet Performance Crate Engine, ZZ 572, 621 HP, Big Block Chevy, Each

4.8 (5) Write Review
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$30.44

$ 13 .99 $13.99

In Stock
  • Engine has the larger 3.580 in. crankshaft bolt pattern and would use an internally balanced 2 piece rear main seal flexplate, even though the engine is a 1 piece rear main seal. This engine is not designed, nor intended to be used in any marine applications. Designed for pre-1976 street vehicles or any off-road vehicle. Engines installed in vehicles registered and normally operated outside of the United States carry no warranty. Clutch linkage bosses are drilled and tapped and includes a provision for a mechanical fuel pump.
  • Package dimensions :42.0 " L x38.0 " W x42.0 " H
  • country of origin :United States
  • package weight :673.0lbs


Proving the adage there’s no replacement for displacement, the ZZ572/621 is the ultimate expression of Chevrolet Performance’s engineering capability.


Wyatt Harden
Reviewed in the United States on May 25, 2023
It fits in my 94 Miata and it’s crazy fast this thing will make me go Mach Jesus in that thing
Elijah
Reviewed in the United States on December 17, 2023
Me and my buddy swapped my 92 ranger with this big block thinking the ranger could handle the power. Right as we left the drive way we gave er the beans and unusual noise emanated from the rear of the vehicle, followed by a loss of power to the wheels. Now I regret to inform you that my vehicle experienced a catastrophic failure in the rear differential.
Landry pengov
Reviewed in the United States on December 17, 2023
down side my truck now gets 5mpg
Alexander T. Novak
Reviewed in the United States on January 8, 2019
Does not make 400 hp
Greg
Reviewed in the United States on January 13, 2019
620 horse pwr at 5500 rpm's, 650 lb ft torque at 4500 rpm. Its a beast.I just checked the GM part number, summit sells this as do most performance engine shops.Chevrolet Performance's largest, most powerful street engine is here. The ZZ572 c.i.d. 620 hp deluxe long block crate engines are built around an all-new generation VI one-piece main seal tall deck--572 c.i.d. with approximately 9.6:1 compression, 620 hp at 5,500 rpm, and 650 lbs.-ft. of torque at 4,500 rpm, with a recommended max rpm of 6,000.These all-new race blocks have a 4.560 in. bore and are filled with forged 4340 steel cranks with 4.375 in. stroke, shot-peened forged 4340 H-beam rods, and forged aluminum pistons with full floating wrist pins. They include redesigned rectangular port aluminum cylinder heads with 118cc combustion chambers, and stainless steel valves at 2.25 in. intake side and 1.88 in. exhaust side.Additional specs: Hydraulic roller camshafts are used with valve lift being .632 in. intake, and .632 in. exhaust side; duration at .050 in. for intake is 254 degrees and 264 degrees exhaust side. Hardened chromoly retainers are used with dual valve springs 1.50 in. coil diameter, 1.800 in. installed height with 197 lbs seat pressure. Aluminum roller rockers with 1.7:1 ratios, high performance one-piece push rods are installed. New Chevrolet Performance Parts tall deck single-plane intake manifold and 850 cfm Demon carburetors deliver the air. A GM distributor handles ignition; spark plugs and wire are included, along with new screened and louvered windage trays, High-rpm torsional dampers are used. Pump gas friendly, massive torque and horsepower, all from Chevrolet Performance.