Cummins Engine Swap Kits

CMW Trucks - 1947 - 1972 Chevy Truck Parts


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ZZ572/620 Deluxe - Big-block performance with torque to spare.

When you’re ready to really step it up, it’s time for the GM Performance Parts ZZ572 and it’s massive 620 horsepower and 650 lb.-ft. of torque! This is flat-out, the baddest street Rat available that still happily runs on pump gas. The ZZ572/620 features 572 cubic inches of pure big-block and ships to your door in the coolest collection of orange, chrome, and aluminum you’ve ever seen.

There are several custom-designed components that make the ZZ572/620 the king of the street. It has a strong, 4-bolt block that was created with a 4.560" bore just for the 572" displacement. The 572 block is fortified with a forged crank, forged rods, forged pistons—everything was designed to offer you the ultimate big-block experience. To feed all of those hungry cubes, we topped it off with a single-plane intake manifold that has been port-matched to the ectangular-port aluminum heads. A custom, hydraulic roller camshaft uses .632" lift perimeters to lead the charge. We make no apologies if the loping, aggressive idle of this camshaft attracts attention.

The Deluxe ZZ572/620 comes complete from oil pan (with windage tray) to carburetor, including an 850-cfm Demon four-barrel, HEI distributor, red spark plug wires, aluminum short-style water pump, and automatic transmission flexplate. It’s the ideal combination of big-block parts—designed, validated to GMPP standards, and tested in real world applications.

Possible Applications

  • The ultimate hot rod starting point
    Pump gas drag racing—just add spray
  • Wake up the neighborhood—anytime!
  • Only install if you want to be the biggest dog on the porch

*Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. See specific warranty information. Some applications may not be emission legal; check state and local ordinances.

Part Number: 19201333
Engine type: Chevy big-block V-8
Displacement (cu in): 572
Bore x stroke (in): 4.560 x 4.375
Block (P/N 25534368): 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 88961557): Hydraulic roller
Camshaft lift (in): .632 intake / .632 exhaust
Camshaft duration (@.050 in): 254'c1 intake / 264'c1 exhaust
Cylinder heads (P/N 12499255): Aluminum rectangular port, 118 cc chambers
Valve size (in): 2.25 intake / 1.88 exhaust; stainless steel
Compression ratio: 9.6:1
Rocker Arms (P/N 12361323): Aluminum roller style
Rocker arm ratio: 1.7:1
Distributor (P/N 88961867): HEI
Carburetor (P/N 88961560): 850 cfm
Water pump (P/N 14058915): Aluminum, short-style
Spark plugs & wires: Included
Flexplate (P/N 12561217): 14"
Recommended fuel: 92 octane
Ignition timing: 36'c1 total @ 5000 rpm
Maximum rpm: 6000

Chevy Performance ZZ572 - 620 Deluxe Engine Image

Part #: 19201333

zz572 - 620 dyno image

Installation Notes

  • Clutch linkage boss is cast and machined in block, but must be 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.
  • Intended for pre-1977 street vehicles or all off-road vehicles.
  • Not intended for marine applications.
  • You do have a strong transmission and rear axle, don’t you?