The GM LS9 is a high-performance 6.2L supercharged V8 engine from the LS family, engineered for extreme power and speed. Designed for muscle cars and sports vehicles, the LS9 delivers impressive horsepower and torque with advanced technology for superior performance on and off the track.
Features
Tested Engine with Warranty
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Direct Fit for Your Vehicle
Description
The GM LS9 Engine is a high-performance 6.2L supercharged V8 engine built for serious power and speed. It’s part of the LS engine family and comes with a lightweight aluminum block that keeps weight down without giving up strength. A factory-installed Roots-style supercharger gives the LS9 a big performance boost, while strong forged parts inside like the pistons, rods, and crankshaft that helps it handle high power safely.
With a 9.1:1 compression ratio, it strikes a great balance between performance and reliability. It produces an impressive 638 horsepower and 604 lb-ft of torque, making it one of the GM’s most powerful engines ever. It also includes high-flow cylinder heads, a dry-sump oil system for better lubrication at high speeds, and a top-tier cooling system to offer hassle free acceleration
LS9 fitment is unique to the C6 Corvette ZR1 (2009–2013). The engine uses the same dry-sump oil system as the LS7 but with a different supercharger intake manifold, intercooler heat exchanger, and supercharger drive system. The LS9’s specific oil pan, supercharger assembly, and accessory drive configuration are application-specific. Our application review confirms all compatibility requirements before your engine ships.
When evaluating a used engine versus a remanufactured engine or OEM engine for the LS9, authenticity matters. A used GM LS9 engine from a verified low-mileage ZR1 donor is the only path to restoring the factory 638-horsepower assembly with original titanium valves, original supercharger, and original Performance Build Center provenance. No remanufactured engine alternative or rebuilt LS9 can replicate this factory assembly. Choosing a used LS9 OEM engine means choosing the actual engine GM’s master builder assembled — performance credentials that belong only to the original unit.
Every used GM LS9 engine ships with up to a 90-day warranty and arrives within 2 to 5 business days. Installation is not included. LS9-specialist installation is required for this application. These are genuine GM OEM engines, and we stand behind every unit.
Specifications
Product Type
Engine
Displacement (Engine Size)
6.2L Supercharged V8
Fuel Type
Gasoline
Availability
In Stock
Shipping
Nationwide Available
Use Case
Ideal for performance builds, swaps, and replacements
Frequently Asked Questions
How much HP does a LS9 have?
The LS9 produces up to 638 horsepower at 6,300 rpm, making it one of the most powerful engine of GM’s lineup.
Is the LS9 a supercharged LS3?
No, the LS9 is not just a supercharged LS3 it’s a separate, high-performance engine. While both share a 6.2L displacement, the LS9 has stronger internals, a dry-sump oil system, and is built specifically for extreme power and boost.
How reliable is the LS9 engine?
The LS9 engine is reliable because it has strong internal components and a special oil system. With regular maintenance, it can last over 100,000 miles, even with hard use.
Is the LS9 a big block?
No, the LS9 is a small-block V8 engine, part of GM’s LS family. It’s not a big block, but it delivers big power in a compact, lightweight design.
How much does a LS9 Engine rebuild cost?
Rebuilding an LS9 engine typically costs between $2,000 and $3,000 for a standard rebuild, depending on parts and labor. High-performance rebuilds or supercharger work can increase the rebuilding cost.
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Shipping Policy
Our shipping policy is flexible, as the shipping charges depend on the location. A few certain remote regions like CO, UT, NY, OR, & CA may have additional shipping charges or delivery fees. However, some circumstances may cause delays, but we always strive to deliver your order as quickly as possible.
Please note that all shipping times are estimates and not guaranteed. We examine all rebuilt and used engines before shipment and aim to provide high-quality used engines and transmissions. Shipping details and fees will be disclosed to consumers before any transactions are made. Our team is operational 24/7, and you can call us at +1-888-799-0188 to place an order.
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