DR525 376ci NMCA LS Stock Class Spec Engine F-CAR PAN

Product Details

BIG POWER FOR LSX STOCK DRAG RACING
Chevrolet Performance’s DR525 sealed drag racing crate engine signals an important advancement for drag racing, enabling exciting heads-up racing at a lower cost than custom-built engines. It’s an approach Chevrolet Performance implemented in a number of circle track racing series, providing racers a high-performance engine at a great value.

The DR525 is designed as the spec engine for NMCA’s LS Stock racing class in the LSX Showdown Challenge Series. The 6.2L (376 cubic inches) naturally aspirated engine is rated at 525 horsepower with 498 lb.-ft.torque, and features several tamper-proof seals to ensure class compliance. And while it is the spec engine for the LS Stock class, it is legal in other NMCA/LSX Showdown Challenge classes – and other drag racing series.

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). Chevrolet Performance’s custom-calibrated E67-type engine control system – P/N 19354340 (sold separately) – must be used with the DR525 in the LS Stock class. It features a tamper-proof engine control unit.

TECH SPECS
Part Number: 19329008 (w/Gen 4 F-car oil pan)
Engine Type: LS-Series Gen IV Small-Block V-8
Displacement (cu in): 376 cu in (6.2L)
Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
Block (P/N 12623967): Cast aluminum with 6-bolt, cross-bolted main caps
Crankshaft (P/N 12597569): Nodular iron
Connecting Rods (P/N 12607475): Powdered metal
Pistons (P/N 19207287): Hypereutectic aluminum
Camshaft Type (P/N 88958770): Hydraulic roller
Valve Lift (in): 0.525 intake / 0.525 exhaust
Camshaft Duration (@0.050 in): 226° intake / 236° exhaust
Cylinder Heads (P/N 12629063): Aluminum L92-style port; as cast with 68cc chambers
Valve Size (in): 2.165 intake / 1.590 exhaust
Compression ratio: 10.7:1
Rocker Arms (P/N 12669995 int): Investment cast, roller trunnion
Rocker Arms (P/N 12669993 exh): Investment cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: Premium pump
Maximum Recommended RPM: 6,600
Reluctor Wheel: 58x
Balanced: Internal

INSTALLATION NOTES
• Assembly does not include any electronics
• Use DR525 Engine Controller Kit for engine operation, P/N 19354340.
• Intended for off-road, drag racing vehicles
• Not intended for marine applications
• Front-End Accessory Drive Kit, P/N 19329418, not included with engine assembly.

Chevrolet Performance Racing Crate Engines are excluded from limited warranty.

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