727 HP @6,300 RPM/ 680 LB-FT TORQUE @4,900 RPM
price: $22,854
part number: 19331585
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    Our baddest, most powerful Big-Block racing engine is ready for the strip It is the king of all rat engines and is capable of pulling your bracket racer or heads-up challenger down the 1320 in the 9-second range. The ZZ572/720R’s true value lies in its ready-to-run status when delivered. Rather than waiting weeks for a racing engine shop to build a custom combination, we deliver the ZZ572/720R fully assembled. Just bolt on the included Dominator-style 1150-cfm carburetor, along with a starter and fuel pump (not included), and you’re ready to go. The ZZ572/720R is built with the best stuff we can find, including an all-forged rotating assembly, rectangular-port aluminum cylinder heads with 113-cc intake ports, and 2.25/1.88-inch valves. There’s also a solid roller camshaft with 0.714/0.714-inch lift. If you’re building the ultimate dual-purpose car, the ZZ572/720R is suitable for limited forays on the street. It has a 12.0:1 compression ratio, so make sure you’ve got access to 110-octane gasoline before hitting the local cruise night.

    Part Number: 19201334
    Engine Type: Chevy Tall Deck Big-Block V-8
    Displacement (cu. in.): 572
    Bore x Stroke (in.): 4.560 x 4.375
    Block: Cast-iron with four-bolt main caps
    Crankshaft: Forged steel
    Connecting Rods: Forged steel, shot peened
    Pistons: Forged aluminum
    Camshaft Type :Mechanical roller
    Camshaft Lift (in.): .714 intake / .714 exhaust
    Camshaft Duration (@.050 in.): 278° intake / 282° exhaust
    Cylinder Heads: Aluminum rectangular port, 118-cc chambers
    Valve Size (in.): 2.250 intake / 1.880 exhaust stainless steel
    Compression Ratio: 12:1
    Rocker Arms: Aluminum, roller style
    Rocker Arm Ratio: 1.7:1
    Distributor: Electronic ignition
    Carburetor: 1150-cfm Dominator
    Water Pump: Aluminum, short-style
    Spark Plugs and Wires: Included
    Recommended Fuel: 110-octane race gas
    Ignition Timing: Base 8° BTDC, 36° Total Maximum
    Recommended rpm: 6750
    Balanced: Internal

    • Due to crate fitment, the carburetor is shipped in a separate box 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, ignition coil, and fuel pump (not included)
    • Gen VI tall-deck block has machined mechanical fuel pump boss
    • Comes with a 14-inch 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
    Big sticky slicks will help hook up this monster

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