SKU: 24175098861

CHEV LS3 6.2L DR525 525HP GM PERFORMANCE CRATE ENGINE # 19434599

Sale price$8550.00 Regular price$9500.00
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Description

CHEV LS3 6.2L DR525 525HP GM PERFORMANCE CRATE ENGINE # 19434599Big Power LS 376ci, DR525 for the Drag Strip Normal LS3 Pan Chevrolet Performances DR525 sealed drag racing crate helps enable exciting heads up racing at a lower cost than custom built engines. Its an approach Chevrolet Performance implemented in a number of circle track racing series, providing racers with a high performance engine at a great value. The DR525 is designed as the spec engine for NMCAs LS Stock racing class in the LSX Showdown

Big Power LS 376ci, DR525 for the Drag Strip

Normal LS3 Pan

Chevrolet Performances DR525 sealed drag racing crate helps enable exciting heads-up racing at a lower cost than custom-built engines. Its an approach Chevrolet Performance implemented in a number of circle track racing series, providing racers with a high-performance engine at a great value.

The DR525 is designed as the spec engine for NMCAs 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. And while it is the spec engine for the LS Stock class, the DR525 is legal in other classes and drag racing series.

It is offered with two part numbers: 19434600 (includes Chevrolet Performances Muscle Car Oil Pan) and 19434599 (includes a Gen 4 F-body oil pan). Chevrolet Performances custom-calibrated E67-type control system - P/N 19432870 (sold separately, must use C10 fuel only)must be used with the DR525 in the LS Stock class. It features a tamper-proof engine control unit.

INSTALLATION NOTES

  • Assembly does not include any electronics
  • Use DR525 Engine Controller Kit for engine operation, P/N 19432870
  • Not intended for marine applications
  • Front-End Accessory Drive Kit, P/N 19329418, not included with engine assembly


TECH SPECS

  • Part Number: 19434600 (w/Muscle Car Oil Pan) 19434599 (w/Gen 4 F-Car Oil Pan)
  • Engine Type: LS-Series Gen IV Small-Block V-8
  • Displacement (cu in): 376 (6.2L)
  • Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
  • Block( P/N 12729604): Cast aluminum with 6-bolt, cross-bolted main caps
  • Crankshaft (P/N 12736808): Nodular iron
  • Connecting Rods (P/N 12649190): Powdered metal
  • Pistons (P/N 19207287): Hypereutectic aluminum
  • Camshaft Type (P/N 88958770): Hydraulic roller
  • Valve Lift (in): .525 intake / .525 exhaust
  • Camshaft Duration (@.050 in): 2260 intake / 2360 exhaust
  • Cylinder Heads (P/N 12675871): 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 12681275 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.
Not intended for marine applications
Front-End Accessory Drive Kit, P/N 19329418, not included with engine assembly.

Shipping Notes
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Exchange/Return Notes
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SKU: 24175098861

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Patricia Dodd
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★★★★★ 5
surprised!
I actually didn't realize I had ordered "time released" version. I thought these were just normal melatonin. But now that I've tried these, I love them so much better than the regular version! Helps me sleep better through the night. No taste, love this brand of Source Naturals.
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Reviewed in the United States on October 17, 2025
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ChelaTho813
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The only one I'll use!
As the title says, this is the brand to get!! It's fast-acting, doesn't give me weird dreams like some do, and I never wake up feeling groggy.
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Belle of the Ball
Houston, US
★★★★★ 5
Works wonders
I've been buying these for well over a year now as Subscribe and Save. I work 12 hour overnights as a nurse. My sleep schedule normally gets messed up. I would have no problem falling asleep but would wake up only a few hours later which is not good when you have work again that night. We buy these on Amazon due to the great price and the fact that they are extended release which helps keep me asleep longer. When I take 1 or 2 of them, I am able to sleep about 7-8 hours which is great. I take this both when I sleep during the day and sleep during the night. It helps me sleep no matter when and I am able to adjust my sleep schedule often. I have recommended them to many.
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Reviewed in the United States on January 10, 2013
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PSBone
Charlottesville, US
★★★★★ 4
Works quite well, dose still a bit high for me
Used to take the Natrol 5mg slow release, now that I can compare these 2, I love this more. It doesn't make me feel too edgy, it's quite relaxing actually. I still have to halve the dose as the full dose makes me groggy the next day. Where the Natrol gave me very vivid, but not unpleasant dreams, these don't make me dream as vividly. It does take a bit longer to get me to sleep, but once asleep, your asleep. Highly recommend, once I finish this bottle, I'd get the 2mg tr next time, as a lower dose works better for me.
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Reviewed in the United States on July 10, 2014
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Eudy Ernesto De León Batista
Alexandria, US
★★★★★ 5
Excelente Muy Satisfecho
Servicio excepcional, cuidadoso, el producto muy bien empacado. Y el tiempo de entrega fue el acordado. Y del producto ni hablar, excelente.
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