Horsepower: 621 HP

Torque: 645 LB-FT

Go Big or Go Home

This long-block assembly is based on the ZZ572/620 Deluxe and includes the cylinder heads, oil pan, front cover and flexplate. The induction system, water pump, distributor and additional accessories must be added to complete the engine.

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
• Not intended for marine applications

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
• Intake Manifold (P/N 88961161): Single plane
• Carburetor (P/N 19420446): 850-cfm
• Camshaft Type (P/N 19210721): Hydraulic roller
• Valve Lift (in): .632 intake / .632 exhaust
• Camshaft Duration (@.050 in): 254° intake / 262° 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
• Water Pump (P/N 19168602): Aluminum, short-style
• Recommended Fuel: Premium pump
• Distributor: HEI
• Spark Plugs and Wires: Included
• Ignition Timing: 36° Total @ 4,000 rpm
• Maximum Recommended rpm: 6,000
• Balanced: Internal
• Flexplate (P/N 12561217): 14"

NOTE: Distributor with melonized steel gear MUST be used with long-blocks and partial engines with steel camshafts, or engine damage will occur.