Chevrolet Performance ZZ572/620 Big Block Crate Engine - 621 HP/645 TQ - Ultimate Street Engine - 572ci Monster

Ultimate Big-Block Street Engine - No Replacement for Displacement

The ZZ572/620 is the ultimate expression of Chevrolet Performance's big-block engineering capability, delivering 621 horsepower and a massive 645 lb-ft of torque. This is Chevrolet Performance's largest, most powerful street engine built around an all-new generation VI tall-deck block.

Specifications:

• Part Number: 19331581
• Engine Type: Gen VI Big-Block V-8
• Displacement: 572 cu in (9.4L)
• Bore x Stroke: 4.560" x 4.375"
• Power: 621 horsepower at 5,500 rpm
• Torque: 645 lb-ft at 4,500 rpm
• Compression Ratio: 9.6:1
• Maximum RPM: 6,000 recommended

Engine Construction:

• All-new Generation VI one-piece rear main seal tall-deck block
• Latest-generation tall-deck block casting with 4-bolt main caps
• All-forged rotating assembly for maximum strength
• Forged 4340 steel crankshaft with 4.375" stroke
• Shot-peened forged 4340 H-beam connecting rods
• Forged aluminum pistons with full floating wrist pins

Massive Cylinder Head Technology:

• High-flow aluminum rectangular-port cylinder heads
• Massive 310cc intake passages for tremendous airflow
• 118cc raised exhaust ports
• 118cc combustion chambers
• Stainless steel valves: 2.250" intake / 1.880" exhaust

Extreme Camshaft Specifications:

• Hydraulic roller camshaft with incredible specifications
• Valve lift: 0.632" intake / 0.632" exhaust
• Duration (@0.050): 254° intake / 264° exhaust
• Optimizes airflow volume enabled by large-port heads

Installation Package:

• Long block configuration
  
• Carburetor ships uninstalled due to crate fitment requirements
• Clutch linkage boss drilled and tapped

Installation Requirements:

• Requires internally balanced flywheel for manual transmission applications
• Starter and fuel pump not included
• Gen VI tall-deck block has machined mechanical fuel pump boss
• When using cast-iron exhaust manifolds, lower head bolts may need shorter heads for clearance
• Designed for pre-1976 street vehicles or any off-road vehicle

Fuel Requirements:

• Premium pump gasoline recommended
• 35° total ignition timing at 4,000 rpm
• External balance configuration

This Product is a USA Special Order, and will take around 6 - 8 weeks to arrive, call to discuss options