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Welcome to Flyin' Miata!

1.8 conversions

It's relatively easy to swap the NA and NB 1.8 engines into a 1.6 chassis. Here, you'll find the various adapters, mounts, etc to make life easier.

We do have a short guide on the swap as well as more detailed instructions.

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15 Item(s)

  1. 1.8 conversion coil bracket
    Mount a set of 1.6 coils on a 1.8 engine. Learn More
  2. NA75-39-030
    $28.99
    Left side 1.8 motor mount bracket. Learn More
  3. NA75-39-021
    Right side 1.8 motor mount bracket. Learn More
  4. FM throttle body adapter
    Take the headache out of putting a 1.8 motor in a 1.6 Miata. Learn More
  5. 1.8 conversion kit

    From: $149.00

    To: $391.24

    Want to put a 1.8 engine in your 1990-93 Miata? Here are the parts you'll need. Learn More
  6. Hose splice with fan thermoswitch port
    $37.99
    Make your 1.8 swap easier. Learn More
  7. Shown with optional TPS
    Give your aftermarket ECU a real throttle position sensor! Learn More
  8. Mazda Competition motor mount
    Stiffer motor mount to help keep a high power engine from moving around. Learn More
  9. Stock Mazda motor mount
    Tame excessive engine movement! Learn More
  10. 1999-00 EGR plug
    $7.99
    For cars with deleted EGR. Learn More
  11. NB is on the left, NA8 is on the right.
    Use a 1.6 throttle cable on a 1.8 intake manifold. Learn More
  12. EGR blockoff plate
    $19.49
    Stainless steel plate to block off the EGR fitting Learn More
  13. EGR cap
    $18.99
    For cars with deleted EGR. Learn More
  14. Everything installs in the same location as the stock fuel filter, which is replaced.
    $1,299.00
    Run your Miata on ethanol or gasoline without having to adjust anything - E0 to E100 fuel on the fly! Learn More
  15. Flyin' Miata Big Fuel kit (1.8 in NA6)
    $999.00
    Everything you need to feed an engine that consumes mass quantities of fuel. Learn More

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