How Much Does an LS3 Engine Cost? A Comprehensive Guide

Introduction: The LS3 Engine’s Legacy

The GM LS3 engine is a legendary 6.2L V8 powerhouse known for its reliability, performance, and versatility. Found in iconic vehicles like the Chevrolet Corvette (C6) and Camaro SS, it’s a favorite among car enthusiasts and restomodders. But how much does an LS3 engine cost in 2024? This guide breaks down pricing, factors affecting costs, and tips for savvy buyers.

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LS3 Engine Cost Breakdown

1. New Crate Engines

• Price Range: 6,500–6,500–12,000+
  • Base LS3 (no accessories): ~6,500–6,500–8,500
  • Fully dressed (with intake, ECU, exhaust manifolds): ~9,000–9,000–12,000+
• Sources: GM dealerships, certified retailers (e.g., Summit Racing, JEGS).

2. Used Engines

• Price Range: 3,500–3,500–7,000
  • Low-mileage (under 50k miles): 5,000–5,000–7,000
  • High-mileage or salvage yard engines: 3,500–3,500–4,500
• Tip: Verify condition with compression tests and service history.

3. Rebuilt/Remanufactured Engines

• Price Range: 5,000–5,000–9,000
  • Includes warranties (1–3 years) and refreshed components.

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Factors Affecting LS3 Engine Prices

1. Condition: Low-mileage or “pull-out” engines from wrecks cost less.
2. Inclusions: Accessories (alternators, starters) or ECMs add value.
3. Seller Reputation: Private sellers vs. certified retailers.
4. Demand: Prices spike for engines from desirable models (e.g., Corvette LS3).
5. Location: Shipping heavy engines can add 300–300–800.

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Installation Costs

• Labor: 1,500–1,500–3,500 (mechanic rates: 90–90–150/hour).
• Additional Parts: Mounts, wiring harnesses, or custom tuning may add 1,000–1,000–2,500.

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LS3 vs. Other LS Engines

• LS2 (6.0L): Cheaper (2,500–2,500–5,000 used) but less power.
• LS7 (7.0L): Pricier ($15,000+ new) for high-performance builds.
• Why LS3?: Balance of affordability, 430–436 hp stock, and massive aftermarket support.

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Tips for Saving Money

• Buy from reputable salvage yards or auctions.
• Opt for a long-block (engine only) and source accessories separately.
• DIY installation if you have mechanical expertise.

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Conclusion: Is the LS3 Worth the Cost?

The LS3 engine’s blend of power, durability, and mod-friendly design justifies its price for many enthusiasts. Whether you’re swapping into a project car or restoring a classic, understanding these costs ensures a smart investment.