Chevrolet Performance ZZ572/620 Base - GM (19331581)

Details

• Brand:

  

• SKU:

  19331581

• Other Names:

  ENGINE

• Description:

  OUR BADDEST BIG-BLOCK STREET ENGINE
  Proving the adage there's no replacement for displacement, the ZZ572/620 is the ultimate expression of Chevrolet Performance's engineering capability, wrapped up in a soul-stirring combination of performance and attitude. We build the ZZ572/620 with huge 4.560-inch bores and a 4.375-inch stroke to help it deliver 621 hp and a stunning 645 lb.-ft. of grunt!
  Strength comes from a latest-generation tall-deck block casting with four-bolt main caps and an all-forged rotating assembly, while high-flow aluminum rectangular-port cylinder heads with massive 310cc intake passages, 118cc raised exhaust ports and 118cc combustion chambers process tremendous airflow. A hydraulic roller camshaft with incredible 0.632/0.632-inch lift and 254/264-degree duration specifications optimizes the airflow volume enabled by the large-port heads.
  TECH SPECS
  Part Number: 19331583
  Engine Type: Chevy Tall-Deck Big-Block V-8
  Displacement (cu in): 572
  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 19331429): Aluminum rectangular port, 118cc chambers
  Valve Size (in): 2.250 intake / 1.88 exhaust; stainless steel
  Compression Ratio: 9.6:1
  Rocker Arms (P/N 19210726): Aluminum roller style
  Rocker Arm Ratio: 1.7:1
  Flexplate (P/N 12561217): 14"
  Recommended Fuel: Premium pump
  Ignition Timing: 36° Total at 4,000 rpm
  Maximum Recommended rpm: 6,000
  Balanced: Internal
  INSTALLATION NOTES

  • Due to crate fitment, the carburetor is shipped uninstalled 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?
  NOTE: Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.

• Condition: New
• Replaces:

  12498792

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