LS3 Engine for Sale – Shop High-Performance LS3 Crate Engines

Looking for an LS3 engine for sale? You’ve come to the right place.

The LS3 6.2L V8 is one of the most legendary performance engines in the LS family — offering the perfect balance of streetable horsepower, reliability, and tunability. Whether you're building a restomod, Pro Touring street machine, race car, or an LS swap, we offer the best LS3 crate engines for sale from trusted brands like Chevrolet Performance, BluePrint Engines, ATK, and more.

⚙️ Why Choose an LS3 Crate Engine?

430+ Horsepower right out of the box
Aluminum block and heads for lightweight performance
Fuel-injected for modern drivability
Huge aftermarket support
Ideal for hot rods, muscle cars, and track builds

🏆 Best LS3 Engine Options Available

✅ Top LS3 Crate Engines For Sale

Engine Model	Horsepower	Torque	Compression	Block Material	Ideal For
Chevrolet Performance LS3 6.2L 376 C.I.D.	430 HP	425 lb-ft	10.7:1	Aluminum	Restomods, street builds
LS376/525 Crate Engine	525 HP	486 lb-ft	10.7:1	Aluminum	Track-ready, aggressive street use
BluePrint LS3 6.2L Dressed Crate Engine	473 HP	450 lb-ft	10.9:1	Aluminum	Turnkey swaps, show cars
ATK High Output LS3-Based Long Block	500+ HP*	–	Varies	Aluminum	Custom builds, boosted setups

💡 *Power output may vary based on intake, ECU, and tuning components.

🖼️ Suggested Image Placement

Header Image: LS3 engine close-up on a stand

Alt tag: LS3 6.2L crate engine for sale with intake manifold
Installed Shot: LS3 engine installed in a Pro Touring Camaro

Alt tag: LS3 crate engine swap in classic Chevy muscle car
Packaging Image: Engine as shipped (crate or boxed)

Alt tag: LS3 crate engine as shipped in factory crate

🛠️ Best LS3 Engine for Your Build

Choosing the right LS3 depends on your goals:

For Street and Restomod Builds:

🏆 Chevrolet Performance LS3 430HP Crate Engine
✅ OEM reliability, excellent manners, and EFI compatibility

For Race or High HP Applications:

🏆 LS376/525 or ATK 500+ HP Long Block
✅ Aggressive cams, forged internals, and high RPM handling

For Turnkey Swaps:

🏆 BluePrint LS3 Dressed Crate Engine
✅ Fully assembled, dyno-tested, and ready to install

👉 Shop All LS3 Crate Engines »

❓ LS3 Crate Engine FAQ

What’s the difference between LS3 and LS376?

LS376 refers to the cubic inch displacement (376 C.I.D.) while LS3 is the engine code. Most LS3 crate engines are 6.2L / 376 C.I.D. in size.

Can I swap an LS3 into an older muscle car?

Yes. The LS3 is one of the most popular swaps for classic Chevys, Pontiacs, and trucks. Use an LS swap kit with motor mounts, headers, and ECU.

Does the LS3 come with a transmission?

Some kits are engine-only; others come paired with a 4L70E, 6L80, or T56 manual. Make sure to check whether it's a standalone engine or Connect & Cruise package.