Thinking about swapping an LS engine into your G-body car? You’re not alone. LS swaps are incredibly popular because they’re powerful, reliable, and widely supported. But before you dive in, the first question every DIYer asks is: “How much is this actually going to cost me?”
In this guide, we break down realistic 2026 prices for a budget LS swap, covering engines, transmissions, parts, and labor. No fluff — just what you need to plan your build.
1. Engine Costs: Junkyard vs Crate
Junkyard LS Engines
- Price: $800–$1,500 depending on mileage & condition
- Pros: Cheap, widely available
- Cons: Unknown wear, may need rebuild
Crate Engines
- Price: $3,000–$5,500 for entry-level LS crate engines
- Pros: Brand new, warranty, low risk
- Cons: Higher upfront cost
💡 Tip: For a true budget build, most DIYers go junkyard + rebuild for $1,200–$1,800 total.
2. Transmission Costs
Automatic Transmission
- Used: $400–$800
- Rebuilt: $1,200–$1,500
Manual Transmission
- Used: $600–$1,200
- Rebuilt: $1,400–$1,800
💡 Note: Manual swaps often cost more but give better control and driving experience.
3. Essential Parts & Accessories
| Part | Budget Price | Mid-Range Price | Notes |
|---|---|---|---|
| Headers | $200 | $450 | Bolt-on performance |
| Exhaust | $150 | $400 | Cat-back or full system |
| Radiator | $120 | $300 | Aluminum preferred |
| Fuel Pump & Lines | $100 | $250 | Avoid cheap ebay units |
| Brakes | $150 | $400 | Front & rear upgrades recommended |
| ECU / Wiring Harness | $250 | $600 | Pre-wired LS harnesses save headaches |
💡 Affiliate Opportunity: These are parts you can link to in your articles.
4. Labor: DIY vs Shop
- DIY: Most of your labor cost is your time — roughly $0–$500 if you already have tools
- Shop: LS swaps at a shop can run $3,000–$6,000 in labor alone
💡 Tip: Doing 80% yourself + paying for tricky parts (wiring, drivetrain) keeps costs low.
5. Total Estimated Cost (Budget-Friendly)
Total Cost (Engine + Parts + Labor)
| Build Level | Estimated Cost |
|---|---|
| Cheap / DIY | $2,000–$3,500 |
| Mid-Range | $4,000–$6,000 |
| Premium | $7,000–$10,000+ |
Pro tip: Most first-time DIYers aim for the budget build — junkyard engine, reused stock parts where possible, and selective upgrades. This keeps your swap affordable while still giving you modern LS power.
Conclusion / Next Steps
Swapping an LS engine doesn’t have to break the bank. Start with a realistic budget, plan your parts, and tackle the DIY labor where possible.
Next, check out our other guides for best parts upgrades, common swap mistakes, and step-by-step instructions to make your LS swap as smooth as possible.
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