2010 CAMARO SS 6.2 LS3 ENGINE

6.2L LS3 Engine for Sale, Camaro LS3 V8, Low Mileage Used Engine

Key Features

• Low mileage unit, under 80,000 miles verified
• Compression tested on every cylinder
• No knocking, no ticking, no signs of internal damage
• Visually inspected at our Cleveland, Ohio facility
• 6-month warranty against mechanical defects
• Ships nationwide on a secured freight pallet
• Most orders processed and shipped within 1 to 3 business days

A Real LS3 Engine From People Who Know the Platform

The 6.2L LS3 is not a truck engine. It was built as a performance V8 from the start. General Motors put it in the Camaro SS and the Corvette C6 because it belongs in those cars. When one of those engines needs replacing, buyers do not want a compromise. They want the same engine, clean miles, and someone who actually knows what they are selling.

At McClain Auto Part we have been sourcing and selling used engines since 2009. The Camaro LS3 engine is one of our most requested performance platforms and we treat it differently than a standard replacement engine. We know what to look for when we inspect one and we know what a good unit feels like before it ships.

Whether you are replacing a damaged engine in your Camaro SS, sourcing a used LS3 engine for a swap build, or upgrading from a lower output platform, we stock verified low mileage units and back every one with a 6-month warranty.

What Makes the LS3 Engine Worth Buying

The LS3 makes around 430 horsepower and 424 lb-ft of torque in stock Camaro SS trim. That is a serious number for a naturally aspirated V8 with no forced induction. It revs cleanly, pulls strong through the entire RPM range, and responds well to modifications if you plan to build on it.

What builders appreciate most is the combination of output and platform support. The GM LS architecture has the deepest aftermarket ecosystem of any V8 platform on the market. Camshafts, cylinder heads, intake manifolds, headers, forced induction kits. Everything is available, everything is documented, and the community knowledge around this engine is enormous.

For LS swap projects specifically, the LS3 sits at the top of what most builders realistically want. More power than the common 5.3L truck engines, same compact LS dimensions, and a track record that speaks for itself. Clean used LS3 engines from Camaro donors are the first choice for serious swap builds.

Engine Specifications

GM 6.2L LS3 V8, General Specifications

• Engine Type: V8, OHV, 2 valves per cylinder
• Displacement: 6.2L, 376 cubic inches
• Configuration: 90 degree V8
• Fuel System: Sequential fuel injection
• Fuel Type: Gasoline
• Horsepower: Approximately 430 HP in Camaro SS application
• Torque: Approximately 424 lb-ft
• Compression Ratio: 10.7:1
• Bore and Stroke: 4.065 x 3.622 inches
• Cylinder Head Port Style: Rectangular port
• Engine Family: GM LS platform, Gen IV
• Factory Applications: Chevrolet Camaro SS 2010 to 2015, Chevrolet Corvette C6 2008 to 2013

Output figures reflect factory Camaro SS specification. Corvette applications vary slightly. Call us to confirm which donor application the specific unit in stock came from.

How We Inspect Every LS3 Before It Ships

The LS3 is a performance engine and the buyers who order it expect it to perform. We inspect these more thoroughly than a standard truck engine replacement because the stakes are higher and the buyers know the difference.

Our Inspection Process

• Compression tested on every cylinder with actual numbers recorded
• Full visual inspection for cracked blocks, damaged cylinder walls, and external oil or coolant leaks
• Mileage verified against donor vehicle records
• Valve covers pulled on select units to check oil condition and inspect the lifter valley
• Oil passages checked for contamination or sludge buildup
• Timing system inspected for wear on the chain and tensioners
• Rectangular port cylinder heads inspected for cracks and seat condition
• No knocking, no ticking, no unusual engine noise confirmed before packaging

We do not make guarantees we cannot back up. What we do is put real hands on every engine, check the things that actually fail on this platform, and ship the ones that pass. The ones that do not pass do not go out.

Compatibility and Fitment Notes

Factory Applications

The LS3 is factory fitment in the following vehicles:

• Chevrolet Camaro SS, 2010 to 2015
• Chevrolet Corvette C6 base model, 2008 to 2013

LS Swap Applications

The GM 6.2L V8 is one of the most used engines for LS swap builds across a wide range of vehicles. Classic muscle cars, Fox body Mustangs, first and second generation Camaros, custom trucks, and kit cars all use this platform regularly.

Swap fitment is not plug and play in most non-GM chassis. You will need to sort out the oil pan configuration, wiring harness, ECU, motor mounts, and accessory drive for your specific application. We can point you toward what to think about but the swap planning is on the builder side of the transaction.

For direct Camaro SS replacements, call us with your VIN and we confirm compatibility before anything ships. For swap builds, tell us your chassis and intended application and we talk through which unit makes the most sense.

What Is Included With the Engine

Typical Inclusions

• Complete long block assembly
• Intake manifold
• Fuel injectors
• Valve covers
• Oil pan

Wiring harness, ECU, sensors, and accessory drive components are not included unless specifically confirmed at the time of order. What comes attached depends on how the engine was pulled from the donor vehicle and varies by unit.

Call us before ordering and we tell you exactly what is on the specific engine we have in stock. No assumptions on either end.

Warranty

Every LS3 engine we sell comes with a 6-month warranty covering internal mechanical defects. If the engine develops a covered mechanical failure within that period, contact us. We look at what happened and work toward a fair resolution. That means a replacement engine, a credit, or repair guidance depending on the specific situation.

James McClain has been honoring warranty claims since 2009. We are not in the business of finding technicalities to avoid a legitimate claim. If it failed because of something on our end, we take care of it.

Shipping

We ship from Cleveland, Ohio to all 50 states. The LS3 goes out on a freight carrier due to engine weight, fully palletized, strapped down, and wrapped for protection. Most orders are processed and ready to ship within 1 to 3 business days.

A tracking number goes out to you as soon as the engine leaves our facility. It arrives in the same condition it left.

Why Buyers Come Back to McClain Auto Part

Over 15 years in business. More than 10,000 engines shipped to mechanics, shops, and vehicle owners across the country. Rated 4.9 out of 5 stars across 800+ verified Google reviews. Founded by James McClain in Cleveland, Ohio in 2009.

We are not a listing site. We do not broker engines from other yards and drop ship them to you. Every engine we sell is physically in our Cleveland warehouse, inspected by our team, and ready to go when you order it.

A customer who ordered an LS3 for a Camaro SS replacement told us: “Got the engine in three days, compression tested exactly like they said, dropped right in and fired up first try. Mileage was exactly what was quoted. Will not go anywhere else for engines.”

We hold ourselves to that standard on every order.

Frequently Asked Questions

Is This LS3 Compatible With My Camaro SS?

The LS3 is factory fitment in Camaro SS models from 2010 to 2015. Call us with your VIN before ordering and we confirm compatibility for your specific year and trim. There are accessory and harness differences across model years worth sorting out before the engine ships.

How Many Miles Are on This Engine?

Under 80,000 miles, verified from donor vehicle records. Most of our current LS3 inventory comes in lower than that. We tell you the exact mileage on the specific unit before you commit to the order.

Is It Good for an LS Swap Build?

Yes. The LS3 is one of the most popular engines for serious LS swap projects. The rectangular port heads, 430 horsepower output, and deep aftermarket support make it a strong choice for builds where the 5.3L truck engine is not enough. Tell us your application before ordering and we make sure you are getting the right unit for your build.

What Is Included With the Engine?

Most units include the long block, intake manifold, fuel injectors, valve covers, and oil pan. Wiring harness and ECU are not included. Exactly what is attached varies by unit. Call before ordering and we confirm what is on the specific engine in stock.

Does It Come Ready to Install?

The engine itself is ready. Whether it is ready to drop into your specific application depends on your chassis, your existing harness and ECU setup, and what accessories you are reusing. For a direct Camaro SS replacement it is straightforward. For a swap build there is more planning involved. We are happy to talk through it before you order.

What Does the Warranty Actually Cover?

Six months from purchase date against internal mechanical defects. If the engine develops a covered failure, contact us and we work out a resolution. It covers the engine itself, not installation labor, peripheral components, or damage caused by improper installation or maintenance after delivery.

Order Your LS3 Engine Today

Clean low mileage LS3 engines from Camaro donors do not sit in inventory long. The demand from Camaro owners and swap builders is consistent and our stock reflects that.

If you have been looking for a used LS3 engine or a Camaro LS3 engine for sale from a seller with real experience behind it, call us, email us, or place your order now. We confirm mileage, fitment, and exactly what is included before anything ships.

McClain Auto Part. Cleveland, Ohio. In business since 2009. 10,000+ engines shipped. 4.9 stars on Google. 6-month warranty on every engine we sell.