LS Chevy 5.3 510 HP Complete Crate Engine | Pro-Built
Five hundred and ten naturally aspirated horsepower, fully assembled and ready to drop in. No machine shop trips. No parts matching. No wondering whether your combination actually works.
We build this engine on proven LQ, LS2, LS6, LS3, and LSX platforms in displacements from 5.3L to 6.2L. Every unit ships with a documented specification sheet, so you know exactly what you paid for.
Call +1 (216) 230-5433 to check current availability and pricing.
Why Builders Choose a Pro-Built Engine
Building 510 horsepower yourself means sourcing a core, paying for machine work, matching components, and hoping the assembly comes together right. Each step costs time and adds risk.
This engine skips all of it. The machine work is done. The parts already match. The clearances are set and documented. As a result, you install an engine instead of managing an engine project.
In addition, you get a known output figure. That lets you plan your transmission, gearing, and rear end before the crate arrives.
Block Platforms Available
| Platform | Material | Displacement | Best For |
|---|---|---|---|
| LQ4 / LQ9 | Iron | 6.0L | Best value, excellent durability |
| LS2 | Aluminum | 6.0L | Weight savings with displacement |
| LS6 | Aluminum | 5.7L | Strong factory head and cam baseline |
| LS3 | Aluminum | 6.2L | Rectangular port heads, most airflow |
| LSX | Iron | Varies | Maximum strength margin |
Not sure which fits? Call us and we recommend the right platform for your chassis and budget.
Build Specifications
| Specification | Details |
|---|---|
| Horsepower | 510 hp target |
| Displacement | 5.3L, 6.0L, or 6.2L |
| Rotating Assembly | Forged rods and pistons |
| Fasteners | Upgraded head and main studs |
| Camshaft | Performance hydraulic roller, matched to build |
| Cylinder Heads | Matched to block and output target |
| Fuel System | Port injection, injectors sized for output |
| Condition | Professionally built, new components |
| Documentation | Full build specification sheet |
Contact us at +1 (216) 230-5433 for exact figures on the current unit.
What Ships With Your Engine
Included: Complete assembled long block with forged internals, cylinder heads fully assembled, performance intake, fuel rails and injectors, valve covers, oil pan, timing cover, harmonic balancer, and your build sheet.
Available on request: Wiring harness, ECU with base calibration, throttle body, sensors, accessory drive, and ignition components.
Sourced separately: Transmission, flexplate or flywheel, motor mounts, headers, fuel pump, and radiator.
Always confirm the full list before ordering.
What You Need Ready Before It Arrives
A tune. The camshaft and induction need a calibration built for the combination. Budget for a professional dyno tune.
Fuel delivery. The injectors flow well beyond factory. Your pump, lines, and regulator have to keep up or the engine runs lean at full throttle.
Exhaust. At 510 horsepower, restrictive exhaust throws away power you already paid for. LS3 builds need rectangular port headers specifically.
Cooling. Size your radiator for the output rather than for a stock engine.
Compare Our Other LS Engines
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Common Questions
Which block should I choose?
The LQ iron block gives the best value. The LS3 flows the most air. The LSX brings the most strength. Call us with your goals and we recommend the fit.
Can I drive it on the street?
Yes, with a matched tune, adequate fuel delivery, and free-flowing exhaust. It is not a mild engine, but it is not race-only either.
Do I need a tune?
Yes. A stock calibration cannot manage this camshaft. Plan for professional tuning as part of your build cost.
How does it ship?
On a certified freight pallet, ports plugged, fully secured. We ship to all 50 states. Send your ZIP code and we confirm the cost.
What about warranty?
Terms vary by build. Call us to confirm coverage before purchasing. Also review our refund policy.
Ready to Order
Tell us your chassis, your target, and your budget. We then confirm the platform, output figures, component list, pricing, and delivery timing.
Call: +1 (216) 230-5433
Email: Sales@53lsengine.com
Clean pro-built inventory moves quickly. If you have questions, ask them now.
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