Chevrolet Performance LSX454R is Ready to Rock the Strip
ORLANDO, Fla. – Chevrolet Performance announced the LSX454R crate engine – part number 19257880 – goes on sale in December 2011, just in time for the 2012 racing season.
Rated at 750 horsepower and 680 lb.-ft. of torque, it’s the most powerful small-block V-8 engine ever engineered by Chevrolet and is designed expressly for the rigors of competitive drag racing.
“The LSX454R offers a ready-built engine that is competitive out of the crate,” said Jim Campbell, GM U.S. vice president of Performance Vehicles and Motorsports. “By using the latest LSX parts and factory-engineered technology, we’ve taken LS performance to the next level that will make racers competitive the moment they install this engine.”
Growth in the popularity of LS-based drag racing helped drive the development of the LSX454R. It brings together many of the specialized Chevrolet Performance LSX parts racers are already using, including the robust LSX Bowtie block, and matches them with a very strong, all-forged rotating assembly and specially designed cylinder heads. The heads deliver tremendous airflow at high rpm – right where a drag racing engine needs it the most to make horsepower.
The LSX454R is also engineered to deliver dependable high-performance. And while there is no warranty on this racing engine, Chevrolet Performance engineers developed a special durability testing process that meets consumer expectations.
“GM engineers developed a unique schedule to validate the LSX454R to the equivalent of 600 drag-strip passes when maintained with regular maintenance schedules and run to Chevrolet’s prescribed operating parameters for the engine,” said Steve Felix, development engineer. “Chevrolet Performance got its start developing racing engines and parts, so we have a long, established legacy of developing durable products that help our customers win.”
The LSX454R features a high-compression (13.1:1), solid-roller combination that uses new LSX DR 11-degree cylinder heads (part number 19166979). The heads represent the full-race LSX head from Chevrolet Performance and are designed for the high-rpm, full-throttle use of racing. Their cavernous, 316-cfm rectangular intake runners flow 430 cfm at 0.800-inch lift (with 28 inches of water restriction), providing even greater volume than the already-large LS7 intake ports. Large 2.25-inch intake valves and 1.625-inch exhaust valves contribute to their tremendous airflow.
The LSX DR heads boast the LSX family’s signature six-bolt-per-cylinder head bolt design, which provides exceptional clamping strength, and they are matched on the engine with an exclusive, all-new high-rise open-plenum intake manifold and a Holley 1,150-cfm Dominator carburetor. The intake is designed expressly for high-rpm, large-displacement racing engines and incorporates two rows of cast-in injector/nitrous bosses.
Additional specifications and features of the LSX454R include:
– Mechanical roller camshaft with .738/.738-inch lift (intake and exhaust) and 250/270-degree duration (intake and exhaust)
– Shaft-mounted, 1.9-ratio rocker arms with needle bearing fulcrums and tips
– 7,100-rpm maximum engine speed
– 58X ignition wheel
– LSX eight-bolt crankshaft flange
– Requires LSX ignition controller part number 19171130
– Racing gas of at least 110 octane is recommended for the LSX454.
The LSX DR heads, matching intake manifold and oil pan (not included) are available separately from Chevrolet Performance.
The LSX454R carries a suggested retail price of $23,200. More information about the LSX45R crate engine and LSX DR components is available at www.gmperformanceparts.com.
Founded in Detroit in 1911, Chevrolet celebrates its centennial as a global automotive brand with annual sales of about 4.25 million vehicles in more than 140 countries. Chevrolet provides consumers with fuel-efficient, safe and reliable vehicles that deliver high quality, expressive design, spirited performance and value. The Chevrolet portfolio includes iconic performance cars such as Corvette and Camaro; dependable, long-lasting pickups and SUVs such as Silverado and Suburban; and award-winning passenger cars and crossovers such as Sonic, Cruze, Malibu, Equinox and Traverse. Chevrolet also offers “gas-friendly” solutions including Cruze Eco and Volt. Cruze Eco offers 42 mpg highway while Volt offers 35 miles of electric, gasoline-free driving and an additional 344 miles of extended gasoline range, according to EPA estimates. Most new Chevrolet models offer OnStar safety, security and convenience technologies including OnStar Hands-Free Calling, Automatic Crash Response and Stolen Vehicle Slowdown. More information regarding Chevrolet models, fuel solutions and OnStar availability can be found atwww.chevrolet.com.
GM Communications – Customer Care & Aftersales; Fleet & Commercial Operations
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