Page 39 of 2009 Performance Parts by GM Parts Direct

crate engines ls series available for purchase online at gmperformanceparts.com lsa 6.2l sc crate engines ls series 19211708 the new cts-v s engine offers 556 supercharged horsepower the 2009 cadillac cts-v ups its performance game with an all-new 6.2l supercharged lsa engine that delivers 556 horsepower making it second only to the corvette zr1 s ls9 supercharged engine as the most powerful production ls crate engine offered by gm performance parts it is based on the same foundation as the ls9 but with a slightly smaller supercharger and a few other unique components designed to deliver cadillac s signature quietness and refinement but just because the lsa doesn t have the same peak power numbers of the ls9 engine doesn t mean it comes up short in any important measurement the unique aluminum-cylinder block casting houses a forged steel crankshaft and super-tough reciprocating parts integrated pistoncooling oil jets high-flow cylinder heads and relatively mild camshaft with 0.492-inch lift on both the intake and exhaust sides the forced induction of the 1.9l sixth-generation supercharger makes up for the comparative lack of valve lift by packing the combustion chambers full of air and fuel this gives the lsa 556 horsepower and 551 lb-ft of torque along with excellent idle quality and right-now throttle response and unlike the ls9 the lsa comes with a conventional wet-sump lubrication system see page 300 for information on our reference guide p/n 88959384 for installing an ls engine in an older car unique 1.9l supercharger free flowing cylinder heads 556 hp 551 lb-ft torque installation notes · 14-inch automatic transmission flexplate included · assembly does not include any electronics or accessory drive components · includes corvette wet sump oil pan · intended for pre-1976 street vehicles or any off-road vehicle · not intended for marine applications · non-corvette applications require flexplate p/n 12602448 note final production version may differ slightly in content from photo shown lsa 6.2l dyno chart lsa dyno chart 600 500 400 300 200 100 possible applications build your own z-28 camaro pump up a c6 vette it s finally where your ls1 now resides 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 lsa 6.2l tech specs part number engine type displacement cu in bore x stroke in block p/n 12627939 crankshaft p/n 12603616 connecting rods p/n 12604857 pistons p/n 12625119 camshaft type p/n 12605220 valve lift in camshaft duration 050 in 19211708 ls series gen iv small-block v-8 376 cu in 6.2l 4.06 x 3.62 103.25 x 92mm cast-aluminum with 6 bolt cross-bolted main caps forged steel powdered metal hypereutectic aluminum hydraulic roller .480 intake .480 exhaust 198° intake 216° exhaust valve size in compression ratio rocker arms p/n 12569167 int rocker arms p/n 10214664 exh rocker arm ratio recommended fuel maximum recommended rpm reluctor wheel balanced cylinder heads p/n 12604860 aluminum l92 style port as cast with 68cc chambers 2.16 intake 1.59 exhaust 9.1:1 investment-cast roller trunnion investment-cast roller trunnion 1.7:1 92 octane 6600 58x internal 40 horsepower 556 6100 rpm 50 torque lb-ft 551 3800 rpm 00 58 00 60 00 62 00 00 00 00 00 00 00 00 00 38 42 44 46 48 52 54 56 00 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 75 74 buy online at www.gmperformanceparts.com gmpp_2009_pages058-089_final_rev.indd 74-75 11/21/08 3:58:50 pm

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