How Much Does a Miata Ls Swap Cost? Budget Breakdown with Used and New Parts

The LS swap has become a popular modification among Miata enthusiasts, offering a significant boost in horsepower and torque. However, understanding the costs involved is crucial for anyone considering this swap. In this article, we will break down the budget for an LS swap in a Mazda Miata, detailing both used and new parts.

Understanding the LS Swap

The LS engine, originally from General Motors, is known for its reliability and performance. Swapping it into a Miata transforms the lightweight roadster into a powerful machine. However, the process involves various components and labor costs that can add up quickly.

Cost Breakdown

Here’s a detailed breakdown of the costs associated with an LS swap for a Miata, including both new and used parts.

  • Engine Cost: $2,500 – $7,000
  • Transmission: $1,000 – $2,500
  • Motor Mounts: $200 – $500
  • Wiring Harness: $300 – $800
  • Exhaust System: $300 – $1,000
  • Cooling System: $200 – $600
  • Driveshaft: $300 – $800
  • Miscellaneous Parts: $500 – $1,500
  • Labor (if not DIY): $1,000 – $3,000

Used vs. New Parts

Choosing between used and new parts can significantly impact the overall cost of the swap. Here’s a comparison of both options:

Used Parts

Opting for used parts can save a considerable amount of money. However, it may come with risks such as wear and tear. Here are some common used parts to consider:

  • Engines from salvage yards
  • Transmission from previous projects
  • Motor mounts from online marketplaces
  • Wiring harnesses from dismantled vehicles

New Parts

New parts guarantee reliability and performance but can be significantly more expensive. Here are some new parts typically required:

  • Aftermarket LS engine
  • Brand new transmission
  • High-quality motor mounts
  • Custom wiring harness
  • Performance exhaust systems

Additional Considerations

When planning your budget for an LS swap, consider the following additional expenses:

  • Tools: If you’re doing the swap yourself, ensure you have the necessary tools, which can add up.
  • Upgrades: You might want to upgrade brakes, suspension, and tires to handle the increased power.
  • Tuning: After the swap, a proper tune is essential for optimal performance.

Conclusion

The cost of an LS swap in a Miata varies widely based on the choices of parts and whether you opt for new or used components. With a budget ranging from $5,000 to over $12,000, it’s essential to plan carefully and consider all aspects of the swap. By understanding these costs, you can make informed decisions and enjoy the exhilarating performance that an LS-swapped Miata can provide.