Page 51 of 2009 Performance Parts by GM Parts Direct

crate engines big-block zz454/440 crate engines big-block 12498777 a classic 454 big-block with high-flow aluminum heads that delivers 500 lb-ft we took the tough 454 ho partial engine with its super-tough all-forged reciprocating assembly and matched it with a set of higher-flow ovalport aluminum cylinder heads to create the zz454/440 we picked up an additional 15 horsepower while maintaining an incredible 500 lb-ft of torque the lightweight aluminum heads also help save weight on the nose of a camaro nova or other street/strip machine the zz454/440 uses our new cylinder block casting that offers greater strength and performance see page 230 for details while the aluminum heads use smaller 110cc combustion chambers to boost compression to 9.6:1 up from 8.5:1 on the 454 ho we then match the airflow capability with a high-lift hydraulic roller camshaft that delivers great idle quality and requires no periodic lash adjustments our crate engine package delivers the zz454/440 assembled with a water pump balancer aluminum intake manifold and a 14-inch flexplate your gm performance parts dealer can hook you up with the carburetor starter ignition system and other accessories required to get this big-power bigblock started powerful big-block for the street great combo for early camaro 440 hp 500 lb-ft torque installation notes · requires addition of carburetor starter distributor and ignition system not included · clutch linkage bosses are 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 · comes with an externally balanced 14 automatic transmission flexplate use flywheel p/n 14096987 and 11 clutch assembly for manual transmission applications · designed for pre-1976 street vehicles or any off-road vehicle · not intended for marine applications 12498778 454 partial engine the sturdy foundation of the zz454/440 is the starting point of a custom engine build use externally balanced flywheel for manual transmission applications zz454/440 dyno chart possible applications a hot rod that deserves a big-block with aluminum heads the starting point for a new race car a bright red 1969 camaro 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 zz454/440 tech specs part number engine type displacement cu in bore x stroke in block p/n 19170538 crankshaft p/n 14096983 connecting rods p/n 19170198 pistons p/n 10215228 camshaft type p/n 24502611 camshaft lift in camshaft duration 050 in 12498777 chevy big-block v-8 454 4.25 x 4.00 cast-iron with 4-bolt main caps forged steel forged steel forged aluminum hydraulic roller .510 intake .540 exhaust 211° intake 230° exhaust cylinder heads p/n 12363392 valve size in compression ratio rocker arms p/n 12368082 rocker arm ratio water pump p/n 19168606 flexplate p/n 10185034 recommended fuel ignition timing maximum recommended rpm balanced aluminum oval port 110cc chambers 2.19 intake 1.88 exhaust 9.6:1 stamped steel 1.7:1 cast-iron long-style 14 92 octane base 4° btdc 26° total 5500 external 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 crate engines include a 24-month or 50,000-mile/80,000-kilometer 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 99 98 buy online at www.gmperformanceparts.com

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