Page 58 of 2009 Performance Parts by GM Parts Direct

crate engines big-block zz572/720r deluxe crate engines big-block 19201334 the nuclear option for bracket racers and street/strip contenders a 10-second car is quick no doubt about it but the zz572/720r could achieve that with a couple of its spark plugs left in the pits on full boil this 720-horsepower monster 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 while it supports parachute-deploying ets the zz572/720r s true value lies in its ready-to-rock 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 1090-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 parts in the industry including a 4340 forged steel crankshaft shot-peened forged rods forged aluminum pistons with full-floating wrist pins a louvered windage tray and more it also uses high-flow rectangular-port aluminum cylinder heads with 2.25/1.88-inch valves a lofty 12:1 compression ratio along with a solid roller camshaft with 0.714/0.714-inch lift and 266/274-degree duration specs makes this competition-ready crate engine uniquely suited for the strip as it turns into a monster above 4000 rpm if you are building the ultimate dual-purpose car it is suitable for limited forays on the street as long as you ve got an adequate exhaust system and access to a 110-octane fuel pump most powerful gmpp big-block maximum power at higher rpm 720 hp 685 lb-ft torque installation notes · 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 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 12498826 zz572/720r base engine gm performance parts offers the racing-oriented zz572/720r in base engine form allowing the builder to order the long-block assembly and add the induction system ignition system and other accessories separately zz572/720r dyno chart possible applications build a solid 9-second bracket car a street car with no equal a show car that shakes the trophies out of the judge s pocket 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 page 352 for specific warranty information some applications may not be emission-legal check state and local ordinances zz572/720r deluxe tech specs part number engine type displacement cu in bore x stroke in block p/n 19212195 crankshaft p/n 88961554 connecting rods p/n 88962926 pistons p/n 88963227 camshaft type p/n 88962216 camshaft lift in camshaft duration 050 in cylinder heads p/n 88961160 19201334 chevy tall deck big-block v-8 572 4.560 x 4.375 cast-iron with 4-bolt main caps forged steel forged steel shot peened forged aluminum mechanical roller .714 intake .714 exhaust 266° intake 274° exhaust aluminum rectangular port 118cc chambers valve size in compression ratio rocker arms p/n 12361323 rocker arm ratio distributor p/n 10093387 carburetor p/n 19170096 water pump p/n 19168602 spark plugs and wires recommended fuel ignition timing maximum recommended rpm balanced 2.25 intake 1.88 exhaust stainless steel 12:1 aluminum roller style 1.7:1 electronic ignition 1090-cfm dominator aluminum short-style included 110 octane race gas base 8° btdc 36° total 6750 internal note distributor with melonized steel gear must be used with long blocks and partial engines with steel camshafts or engine damage will occur available for purchase online at gmperformanceparts.com gm performance parts racing crate engines are excluded from limited warranty gm performance parts does not utilize any used or remanufactured parts in this crate engine for a complete list of parts to complement and finish this engine turn to page 114 buy online at www.gmperformanceparts.com 113 112 buy online at www.gmperformanceparts.com

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