Page 116 of GM Performance Parts 2006 Catalog by GM Parts Direct

WHATS HOT? 572 thumpin cubes 620 horses on pump gas Orange valve covers are cool! CRATE ENGINES BIG-BLOCK 12498793 ZZ572/620 Deluxe 114 ZZ572/620 DELUXE TECH SPECS: Part Number: 12498793 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 intake 264 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 total 5000 rpm Maximum rpm: 6000 GM Performance Parts does not utilize any used or remanufactured parts in this crate engine. GM Performance Parts crate engines include a twelve-month, 12,000-mile warranty. W Big-block performance with torque to spare. When youre ready to really step it up, its time for the GM Performance Parts ZZ572 and its 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 youve 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 rectangular-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. Its the ideal combination of big-block parts designed, validated to GMPP standards, and tested in real world applications.

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