Page 117 of GM Performance Parts 2006 Catalog by GM Parts Direct

ZZ572/620 DYNO CHART Horsepower: 620 5500 rpm Torque (lb-ft): 650 4500 rpm 600 500 450 400 350 300 550 650 700 RPM 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 page 320 for specific warranty information. Some applications may not be emission legal; check state and local ordinances. 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, dont you? 115

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