CHEVROLET Vortec 5.3 LC9 VIN code 3 complete engine 2010 Aluminum Block 2009-14

Chevrolet Vortec 5.3 LC9 Complete Engine | VIN Code 3 Aluminum Block

If your 2009 through 2014 Silverado, Sierra, Tahoe, Suburban, Yukon, or Escalade needs a replacement engine, the LC9 is very likely the correct unit. It is the Gen 4 aluminum block 5.3L Vortec that GM installed across a wide range of trucks and SUVs during that window. You can identify it by VIN code 3 in the eighth position of your vehicle identification number.

At 53LSEngine.com, we carry complete Vortec 5.3 LC9 engines. We inspect and compression test every unit before listing it. In addition, we verify mileage from donor vehicle records so you know exactly what you are buying before you commit.

What Is the Vortec 5.3 LC9 Engine

The LC9 is a Gen 4 5.3L LS engine that GM produced from roughly 2007 through 2014. It uses an aluminum block, dual independent variable valve timing, and Active Fuel Management. GM also built it with flex-fuel capability, which allows E85 operation in equipped applications.

The LC9 sits alongside the LH6 in the Gen 4 family. Both share the same aluminum block architecture and VVT system. However, the LC9 adds flex-fuel hardware that the LH6 does not carry. Consequently, your VIN code matters when confirming which engine your vehicle originally used.

Because the LC9 uses port fuel injection rather than direct injection, it stays far more swap-friendly than a Gen 5 EcoTec3 unit. The fuel system requirements stay simpler and the ECU solutions are well established in the swap community.

VIN Code 3 Identification

Confirming your engine code before ordering prevents an expensive mistake. Here is how to check yours.

Look at the eighth character of your 17-digit VIN. That position identifies the engine. VIN code 3 confirms the LC9 in 2009 through 2014 GM truck and SUV applications.

Other 5.3L codes from the same era include:

If your VIN shows a different code, contact us. We then identify the correct engine for your application before anything ships.

You can also check the RPO label inside your glove box. The code LC9 confirms this engine directly.

LC9 Specifications

Output figures vary by application and model year. Therefore, confirm your specific application before ordering.

What Vehicles Use the LC9

GM installed the LC9 across a broad range of full-size trucks and SUVs.

• Chevrolet Silverado 1500 — 2009 through 2013
• GMC Sierra 1500 — 2009 through 2013
• Chevrolet Tahoe — 2009 through 2014
• Chevrolet Suburban 1500 — 2009 through 2014
• GMC Yukon and Yukon XL — 2009 through 2014
• Chevrolet Avalanche — 2009 through 2013
• Cadillac Escalade — select configurations, confirm VIN before ordering

Provide your VIN when you contact us. We then confirm the correct variant and configuration for your specific application.

For 1999 through 2007 applications, see our Gen 3 Vortec 5.3 LS LM7 engine. For 2014 and newer, see our Gen 5 EcoTec3 5.3 LS L83 and L86.

LC9 Features and Considerations

Aluminum Block Cuts Weight

The LC9 uses an aluminum block rather than the cast iron block found in the LMG and other variants. Because of that, it reduces front-end weight meaningfully. That advantage shows up in both factory applications and swap builds where weight distribution matters.

Variable Valve Timing Improves Response

The dual independent VVT system controls intake and exhaust cam timing separately. As a result, the LC9 delivers stronger low-end torque and better part-throttle efficiency than a fixed-timing Gen 3 engine at the same displacement.

Flex-Fuel Capability

The LC9 carries flex-fuel hardware that allows E85 operation in equipped applications. However, running E85 requires the correct fuel system components and calibration. If your build plan includes E85, confirm the complete setup with us before ordering.

AFM Consideration

The LC9 includes Active Fuel Management, which deactivates four cylinders under light load. AFM lifter wear remains a documented concern on higher-mileage Gen 4 units. For that reason, we document AFM system condition on every LC9 we list.

Many replacement buyers and swap builders delete AFM at installation using LS7 lifters, a delete kit, and a calibration update. If you plan to do that, let us know when you contact us. We then factor it into our unit recommendation.

What Is Included

Included components vary by unit. Contact us to confirm exactly what ships with the specific LC9 in current inventory.

Typically Included

• Complete LC9 long block assembly
• Intake manifold
• Fuel rails and injectors
• Valve covers
• Oil pan
• VVT actuators and solenoids
• Timing cover

Available on Select Units or Upon Request

• Engine wiring harness
• ECU and PCM
• Throttle body and sensors
• Front accessory drive components
• Coil packs and ignition components

Not Included Unless Confirmed

• Transmission
• Flywheel or flexplate
• Engine mounts
• Exhaust manifolds

Always confirm the complete component list before ordering. A long block and a complete engine package are different purchases at different price points.

Inspection and Testing

Every Vortec 5.3 LC9 we list goes through a documented inspection before it reaches the listing.

• Compression testing — We compression test all eight cylinders and record the actual readings. Then we give you those numbers before you purchase.
• Oil condition assessment — We drain the oil and inspect it for metal contamination. Because visible metal particles point to internal wear, those units do not make the listing.
• VVT system inspection — We check the VVT actuators and solenoids for condition and connector integrity.
• AFM system documentation — We document AFM lifter valley and oil passage condition separately before shipping.
• Mileage verification — We verify mileage from donor vehicle records rather than estimating it.
• Audible assessment — We confirm no knocking, ticking, or unusual noise before packaging.

Using the LC9 in a Swap Build

The LC9 works well as a swap engine. However, a few points need attention before installation.

Fuel System

The LC9 runs port fuel injection at standard LS pressure. A quality electric fuel pump sized for the application works in virtually any swap chassis. Because there is no direct injection pump involved, the fuel system stays straightforward.

If your build will run E85, size your fuel system for the higher volume that E85 demands.

ECU and Wiring

The LC9 ECU manages the VVT system, AFM, and flex-fuel sensing. Swap harnesses from Speartech and other suppliers support the LC9 well. Nevertheless, confirm your harness matches the LC9 specifically rather than a generic Gen 4 harness.

AFM Delete

Many swap builders delete AFM during installation. That eliminates the documented lifter wear risk and simplifies the calibration. Confirm the delete kit and calibration work with your ECU choice before the engine arrives.

Oil Pan

The factory truck oil pan does not clear most classic car and custom chassis builds. Swap-specific and low profile oil pans for the Gen 4 LS are available from multiple aftermarket suppliers.

Pricing and Availability

We price Vortec 5.3 LC9 engines based on mileage, condition, included components, and current availability. Units from verified donor vehicles with documented inspection fall within our standard used 5.3 LS engine pricing range.

Contact us at +1 (216) 230-5433 or Sales@53lsengine.com for current pricing, exact mileage, AFM configuration, included components, and availability on the specific unit in stock.

Also review our refund and return policy before purchasing so you understand the full terms.

Shipping

Every engine ships on a certified freight pallet with all ports plugged and the assembly secured for transit. You receive a tracking number when it ships. Before signing the delivery receipt, inspect the pallet and packaging carefully. If you see visible shipping damage, note it with the carrier immediately.

For residential deliveries, confirm liftgate service with the freight carrier when scheduling.

Other 5.3 LS Engine Options

Not sure the LC9 fits your application? Browse our other options instead.

• Gen 3 Vortec 5.3 LS LM7 — suits 1999 to 2007 applications, simplest LS swap option
• Gen 4 Vortec 5.3 LS LH6 — Gen 4 aluminum block with VVT, non flex-fuel
• Gen 5 EcoTec3 5.3 LS L83 and L86 — suits 2014 and newer applications with direct injection
• 5.3 LS Stage 3 Performance Build — built 5.3 LS with BTR cam and 243 heads
• 525 HP Chevrolet Performance LS3 Crate Engine — factory GM Performance unit with GM warranty
• Browse all used 5.3 LS engines
• Browse junkyard 5.3 LS engines
• Browse build 5.3 LS engines

Frequently Asked Questions

Identification Questions

How do I know if my vehicle has an LC9?
Check the eighth character of your VIN. Code 3 confirms the LC9 in 2009 through 2014 GM truck and SUV applications. You can also check the RPO label inside your glove box for the LC9 code.

What is the difference between the LC9 and the LH6?
Both are Gen 4 aluminum block 5.3L engines with VVT and AFM. However, the LC9 adds flex-fuel capability that the LH6 does not carry. Confirm your VIN code before ordering.

Is the LC9 aluminum or iron block?
Aluminum. That distinguishes it from the LMG, which uses an iron block in the same era and application range.

Feature and Compatibility Questions

Does the LC9 have AFM?
Yes. The LC9 includes Active Fuel Management. We document AFM condition on every unit we list. Many buyers delete AFM at installation using LS7 lifters and a calibration update.

Can the LC9 run E85?
The LC9 carries flex-fuel hardware in equipped applications. However, running E85 requires the correct fuel system components and calibration. Confirm your complete setup with us before ordering.

Is the LC9 good for an LS swap?
Yes. It uses port fuel injection, so the fuel system planning stays simple compared to a Gen 5 direct injection engine. In addition, swap harnesses for the LC9 are readily available.

Ordering and Shipping Questions

What mileage are the LC9 units you carry?
Mileage varies by unit and current inventory. We verify it from donor vehicle records before listing every engine. Contact us at +1 (216) 230-5433 for the exact figure on the current unit.

Can I get an LC9 shipped to my location?
Yes. We ship to all 50 states via freight carrier on a secured pallet. Contact us with your delivery ZIP code and we then confirm the shipping cost before you order.

What warranty comes with the engine?
Warranty terms vary by unit. Contact us to confirm coverage on the specific engine before purchasing. Also review our refund and return policy.

Ready to Order Your Vortec 5.3 LC9

If you need a Vortec 5.3 LC9 that is documented, inspected, and compression tested before it ships, contact us before ordering. We then confirm your VIN code, mileage, AFM configuration, included components, pricing, and compatibility for your specific vehicle.

Call us: +1 (216) 230-5433
Email us: Sales@53lsengine.com

Visit our About page to learn more about how we operate. Also review our refund policy and Privacy Policy before placing your order.