Page 24 of 2009 Performance Parts by GM Parts Direct

crate engines small-block zz4 350 turn-key crate engines small-block 19201330 lightweight zz4 heads enable great power at an affordable price the zz4 350 crate engine is a legend in its own time it has been the crate engine choice for countless restored vintage cars street rods trucks and project vehicles of all makes and models in turn-key form it comes with nearly everything you need to get it running in your vehicle a tough four-bolt cylinder block is the foundation for this crate engine to which we add the aluminum zz4 cylinder heads an aluminum intake a holley four-barrel carburetor and hei distributor as a turn-key engine it also includes a starter water pump fuel pump and front-end accessory drive kit including an air conditioning compressor alternator and more originally developed for the c4 corvette the zz4 heads have 163cc intake runners raised exhaust ports and tight 58cc combustion chambers that enhance compression and power the heads feature 1.94/1.50-inch valves for efficient performance of course the rest of the zz4 350 is comprised of premium materials including a forged steel crankshaft and high-silicon pistons the camshaft delivers strong 0.474/0.510-inch lift specs helping the engine rev to 5800 rpm the zz4 350 has powered thousands of vehicles from tri-fives and classic chevelles to trucks suvs and more put it to work in your project our most popular crate engine premium components zz4 heads deliver great airflow installation notes · comes with 12.75-inch externally balanced 153-tooth automatic transmission flexplate change to externally balanced flywheel for manual transmission applications see chart on page 175 · requires fuel line from fuel pump to carburetor · fuel pump pressure is pre-set fuel pressure regulator not required · some assembly and minor engine tuning required · designed for pre-1976 street vehicles or any off-road vehicle · not intended for marine applications 24502609 12561723 zz4 350 base gm performance parts offers the zz4 350 base crate engine for customers who want to finish it off with their own accessories it includes the intake manifold hei distributor cast-iron water pump damper and flexplate zz4 partial engine for customers in search of a replacement partial engine for their zz-series engine this is it it includes the zz4 350 s bottom end with forged steel crankshaft lt1-style high-silicon aluminum pistons and connecting rods check out gmperformanceparts.com for a list of power packages to improve the performance of this engine zz4 350 dyno chart possible applications get that low 13-second bracket car going a new bullet for your friday night cruiser a vintage chevy that deserves a new heart 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 zz4 350 tech specs part number engine type displacement cu in bore x stroke in block p/n 10105123 crankshaft p/n 12556307 connecting rods p/n 10108688 pistons p/n 10159436 camshaft type p/n 10185071 camshaft lift in 19201330 chevy small-block v-8 350 4.00 x 3.48 cast-iron with 4-bolt main caps forged steel powdered metal steel high-silicon aluminum with offset pins steel hydraulic roller .474 intake .510 exhaust camshaft duration 050 in cylinder heads p/n 12556463 valve size in compression ratio rocker arms p/n 10089648 rocker arm ratio recommended fuel ignition timing maximum recommended rpm balanced 208° intake 221° exhaust aluminum 58cc chambers 1.94 intake 1.50 exhaust 10:1 stamped steel 1.5:1 92 octane base 10° btdc 32° total 5800 external note distributor with melonized steel gear must be used with long blocks and partial engines with steel camshafts or engine damage will occur horsepower 355 5400 rpm torque lb-ft 405 3600 rpm 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 except for the starter alternator and power steering pump for a complete list of parts to complement and finish this engine turn to page 56 buy online at www.gmperformanceparts.com 45 44 buy online at www.gmperformanceparts.com

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