New DR525 Racing Engine from Chevrolet Performance
Sealed drag racing crate engine designed for new NMCA LS Stock class
ATLANTA – Chevrolet Performance today introduced the all-new DR525 drag racing crate engine, designed as the spec engine for National Muscle Car Association’s new LS Stock racing class in the LSX Showdown Challenge Series. The 6.2L (376 cubic inches) naturally aspirated engine is rated at 525 horsepower and features several tamper-proof bolts to ensure class compliance. It goes on sale Aug. 1.
The announcement was made at the start of NMCA’s race at Atlanta Dragway, one of four races included in the Chevrolet Performance LSX Showdown Challenge series, which features competitors using exclusively GM’s Gen III and Gen IV “LS”-family engines. The first race for the LS Stock class and the new DR525 racing engine will be the Norwalk, Ohio, event on Aug. 21-24 – the next stop on the path to the LSX Showdown Challenge championship.
“The all-new DR525 engine in the LS Stock class signals an important advancement for drag racing, delivering exciting heads-up racing at a lower cost than custom-built engines,” said Jim Campbell, General Motors U.S. vice president of Performance Vehicles and Motorsports. “It’s an approach we’ve implemented in a number of circle track racing series for more than a decade, providing racers a high-performance engine at a great value.”
Although the DR525 is the spec engine for the LS Stock class, it is legal in other NMCA/LSX Showdown Challenge classes. It is offered with two part numbers: 19329009 (includes Chevrolet Performance’s muscle car oil pan) or 19329008 (includes fourth-generation F-body oil pan).
Technical highlights include:
- 525 horsepower at 6,300 rpm and 489 lb-ft of torque at 4,400 rpm
- Production-based, lightweight aluminum cylinder block with six-bolt, cross-bolted main caps
- High-flow, rectangular-port cylinder heads assembled with 2.165/1.590 valves and high-rpm-capable beehive valve springs
- 10.7:1 compression ratio
- Chevrolet Performance ASA hydraulic roller camshaft with 0.525/0.525-inch lift and 226/236 degrees duration
- Lightweight composite intake manifold with a 90mm throttle body
- Two tamper-proof bolts incorporated on the intake manifold, as well as a tamper-proof bolt on the front cover and the oil pan
- Assembly includes production-type cast iron exhaust manifolds; fuel rail and injectors; coil packs, wires and spark plugs; LS3 water pump and damper
- A front accessory drive with alternator, drive belt and more is available separately (part number 19329418).
Chevrolet Performance’s custom-calibrated E67-type engine control system – part number 19329003 (sold separately) – must be used with the DR525 in the LS Stock class. It features a tamper-proof engine control unit.
The DR525 sealed crate engine carries a suggested retail price of $9,750 (for both part numbers) and the control system’s list price is $1,312.50. The front accessory drive system lists for $812.50. All are for sale – along with other complementing accessories – through Chevrolet dealers and Chevrolet Performance retailers, who can be found at www.chevrolet.com/performance.
LS Stock overview
LS Stock is a naturally aspirated heads-up class designed for 1955-and-later vehicles and is designed as a low-cost, entry-level heads-up class. All entries must compete on accepted suspensions and at the same base weight: 3,300 pounds.
Additionally, all entries are required to read and sign a racer’s contract to prevent class participants from tampering with and/or altering the factory-sealed Chevrolet Performance DR525 crate engine and requisite engine control system.
The class is an all-run, heads-up field using a .400 Pro Tree start. More information and complete class rules are available at www.nmcadigital.com.
About Chevrolet Performance
Driven by more than 100 years of motorsports heritage, Chevrolet Performance fuels the passions of automotive enthusiasts through high-performance vehicles, parts and racing. Performance cars include Camaro SS, SS 1LE, ZL1, Z/28 and the COPO Camaro. Chevrolet Performance parts include crate engines, transmissions, controllers and street-level components. Chevrolet competes in NASCAR, NHRA, IMSA, IndyCar and a variety of circle track racing series.
Founded in 1911 in Detroit, Chevrolet is now one of the world's largest car brands, doing business in more than 140 countries and selling more than 4.9 million cars and trucks a year. Chevrolet provides customers with fuel-efficient vehicles that feature spirited performance, expressive design and high quality. More information on Chevrolet models can be found at www.chevrolet.com
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