Page 41 of 2009 Performance Parts by GM Parts Direct

crate engines ls series available for purchase online at gmperformanceparts.com ls7 7.0l crate engines ls series 19211710 simply the baddest naturally aspirated production ls engine in our arsenal after only a few short years the ls7 7 .0l engine of the corvette z06 is a legend in its own time sure it s got more than 500 naturally aspirated horsepower and 470 lb-ft of torque but the exceptional high-rpm performance and low-end grunt gives this 427-cubic-in combination the great tractability for which ls engines are known and the pulling power expected of a big-block with its historic displacement the ls7 features a unique big-bore cylinder block that is anchored with a forged crankshaft featherweight titanium connecting rods and durable friction-coated pistons but it s the airflow capability of the ls7 s cavernous cnc-ported heads that enables its tremendous power large-volume straight-passage intake runners channel air directly through 2.20-inch titanium intake valves the mixture is burned in large 70cc combustion chambers and what s left exits through 1.61-inch sodium-filled exhaust valves and did we forget to mention the dry sump oiling system this is a serious engine for serious enthusiasts gm performance parts ls7 7 crate engine package includes a production.0l style engine with the dry sump oil pan you ll need to supply the external oil supply and oil lines to the engine but the rest of the assembly is fully dressed including the manifold assembly with injectors and electronically controlled throttle body and log-style exhaust manifolds don t forget your ls7 controller kit see page 288 for more information dry-sump oil pan racing-derived valvetrain 505 hp 470 lb-ft torque installation notes · assembly does not include any electronics · comes assembled with 14-inch corvette z06 168 tooth flywheel · ls7 is the same size and mounts the same as previous ls series engines · ls7 controller kit p/n 19243066 available for non-corvette applications kit includes electronic throttle pedal which is required for throttle input to the ecu see page 288 · use oil hose adapters p/n 25534412 to adapt to an -12 fittings · intended for pre-1976 street vehicles or any off-road vehicle · not intended for marine applications · engine is not compatible with ls7 controller kit p/n 19166557 due to map sensor and throttle body changes ls7 7.0l dyno chart possible applications anything that you want to have the baddest small-block chevy on the planet 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 ls7 7.0l tech specs part number engine type displacement cu in bore x stroke in block p/n 19165058 crankshaft p/n 12568820 connecting rods p/n 12586258 pistons camshaft type p/n 12571251 camshaft lift in camshaft duration 050 in 19211710 ls series small-block v-8 427 7.0l 4.125 x 4.00 104.8 x 101.6mm cast-aluminum with 6-bolt steel main bearing caps forged steel forged titanium hypereutectic aluminum hydraulic roller .591 intake .591 exhaust 211° intake 230° exhaust compression ratio rocker arms rocker arm ratio recommended fuel maximum rpm reluctor wheel balanced valve size in cylinder heads p/n 12578450 cnc ported ls7 style ports 70cc cnc combustion chambers 2.20 titanium intake 1.61 sodium filled exhaust 11.0:1 investment-cast roller trunnion 1.8:1 offset intake only 91 octane 7000 58x internal 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 80 buy online at www.gmperformanceparts.com 79 78 buy online at www.gmperformanceparts.com gmpp_2009_pages058-089_final_rev.indd 78-79 11/21/08 3:59:58 pm

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