ENGINE INTERNALS

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  1. Thermostat neck o-ring not shown
    Timing belt kit (NA8 engine)
    Rating:
    100% of 100
    $112.00
    Ships for free!
    Everything you need for a timing belt change! Learn More
  2. Intake manifold gasket
    Intake manifold gasket
    As low as $10.79
    Seal your intake manifold to the head. Learn More
  3. 1994-00 0.040" Cometic metal head gasket
    1994-00 0.040" Cometic metal head gasket
    $119.00
    Ships for free!
    Slightly thicker than stock and suitable for larger bore sizes. Learn More
  4. 1994-00 Miata head gasket
    1994-00 factory head gasket
    Rating:
    100% of 100
    $80.99
    Ships for free!
    Factory head gasket. Learn More
  5. 1.8 non-VVT valve cover gasket
    Valve cover gasket (non-VVT 1.8 engine)
    $37.99
    Stop unsightly leaks! Learn More
  6. 1994-97 head gasket kit
    1994-97 head gasket kit
    $289.00
    Ships for free!
    A complete head gasket kit. Learn More
  7. 1.8 intake valve stem seal
    1.8 intake valve stem seal
    $9.39
    Valve stem seal for the NA8/NB engine. Get the good stuff! Learn More
  8. Inconel 1mm oversize exhaust valve (1.8)
    Inconel 1mm oversize exhaust valve (1.8)
    $32.99
    Oversize exhaust valves for more flow - now available in Inconel! Learn More
  9. Includes four pistons, wristpins and rings
    Flyin' Miata forged turbo pistons by Wiseco (NA/NB 1.8)
    $869.00
    Ships for free!
    9:1 pistons for built turbo engines - now stronger than ever. Learn More
  10. Belt guide as part of the complete assembly.
    ATI belt guide (thin)
    $41.99
    Ships for free!
    Included with our ATi dampers. Learn More
  11. ATI Damper pulley kit (1996-05)
    ATI Damper pulley kit (1996-05)
    $549.00
    Ships for free!
    Keep your bearings and oil pump happy with this Super Damper. Includes a trigger wheel. Learn More
  12. Exhaust manifold gasket (BP)
    Exhaust manifold gasket (BP)
    $17.89
    Mazda exhaust manifold gasket for 1.8 engines Learn More
  13. Inconel 1mm oversize intake valve (1.8)
    Inconel 1mm oversize intake valve (1.8)
    Rating:
    100% of 100
    $32.99
    As tested on some of the hardest-working Miata engines on the planet. Learn More
  14. Front oil pan seal, 1990-00
    Front oil pan seal, 1990-00
    $14.09
    Change whenever you have the pan off. Learn More
  15. Note that contents may not be exactly as shown
    Engine rebuild kit for 1.8 engines

    From $369.00

    To $727.97

    Ships for free!
    Everything you need to rebuild your engine. Learn More
  16. Rear oil pan seal, 1990-00
    Rear oil pan seal, 1990-00
    $14.09
    Change whenever you have the pan off. Learn More
  17. Note that contents may not be exactly as shown
    Engine rebuild kit for 1.6 engines

    From $539.00

    To $690.77

    Ships for free!
    Everything you need to rebuild your engine. Learn More
  18. Dual valve spring kit
    Dual valve spring kit
    $489.00
    Ships for free!
    For the most extreme Miata engine builds - with titanium retainers. Ooooo. Learn More
  19. Boundary Engineering upgraded oil pump
    Boundary Engineering upgraded oil pump
    Rating:
    80% of 100
    As low as $329.00
    Ships for free!
    Eliminate oil pump failures. Learn More
  20. Flyin' Miata adjustable cam gear - with triggers!
    Flyin' Miata adjustable cam gear - with triggers!
    Rating:
    65% of 100
    $99.99
    Ships for free!
    Fine-tune your cam timing for maximum performance. Learn More
  21. ACL race main bearings for NA/NB
    ACL race main bearings for NA/NB
    As low as $86.99
    Ships for free!
    ACL race main bearings for your engine. Learn More
  22. ACL race rod bearings for NA/NB
    ACL race rod bearings for NA/NB
    As low as $53.99
    Ships for free!
    Top-quality ACL rod bearings. Learn More
  23. Miata not included
    Oil pump blind plug
    Rating:
    100% of 100
    $3.29
    Strongly recommended when installing a new oil pump. Learn More
  24. NA6 Water Pump with Gaskets
    Water pump (1.6 B6 engine)
    Rating:
    93% of 100
    $74.99
    Ships for free!
    It's a good plan to replace your water pump when you change your timing belt. Learn More
  25. Exhaust manifold gasket (B6)
    Exhaust manifold gasket (B6)
    $19.99
    Mazda exhaust manifold gasket for 1.6 engines. Learn More
  26. Upgraded PCV valve
    Upgraded PCV valve
    Rating:
    100% of 100
    $22.99
    A stronger spring in this PCV valve lets it deal with boost. Learn More
  27. ATI Damper pulley kit with 36-2 trigger wheel
    ATI Damper pulley kit with 36-2 trigger wheel
    $549.00
    Ships for free!
    Keep your bearings and oil pump happy with this Super Damper. Includes our 36-2 trigger wheel. Learn More
  28. ATI Damper pulley kit (1991-95)
    ATI Damper pulley kit (1991-95)
    $539.00
    Ships for free!
    Keep your bearings and oil pump happy with this Super Damper. Learn More
  29. Belt guide installed.
    ATI belt guide (thick)
    $41.99
    Ships for free!
    Included with our ATi dampers. Learn More
  30. Thermostat neck o-ring not shown
    Timing belt kit (NA6 big nose)
    Rating:
    73% of 100
    $99.99
    Ships for free!
    Everything you need for a timing belt change! Learn More
  31. Thermostat neck o-ring not shown.
    Timing belt kit (NA6 short nose)
    Rating:
    100% of 100
    $99.99
    Ships for free!
    Everything you need for a timing belt change! Learn More
  32. Wiseco 9:1 Pistons. Includes 4 pistons
    Flyin' Miata forged turbo pistons by Wiseco (NA/NB 1.6)
    $869.00
    Ships for free!

    9:1 pistons for built turbo engines - now stronger than ever.

    SPECIAL ORDER - Please allow 6-8 weeks for delivery.

    Learn More
  33. NB valve keeper
    NB valve keeper
    $5.99
    Valve keepers for 1999-05 Miatas Learn More
  34. ARP main cap studs (NA/NB)
    ARP main cap studs (NA/NB)
    $119.00
    Ships for free!
    Custom designed for the 1990-05 Miata. Set of ten studs. Learn More
  35. ARP head studs
    ARP head studs (NA/NB)
    $149.00
    Ships for free!
    Custom designed for the Miata. Learn More
  36. ACL race thrust bearing for 1990-00 engines
    ACL race thrust bearing for 1990-00 engines
    $10.79
    Top quality thrust bearings Learn More
  37. Carrillo Super-A beam rods for Miata
    Carrillo Super A rods (NA/NB)
    $949.00
    Ships for free!
    Lighter, less expensive and strong! Learn More
  38. Exhaust/intake valve stem seal
    Exhaust/intake valve stem seal
    $9.39
    Fits exhaust valves on all NA and NB engines as well as the intake on the NA6. Learn More
  39. Big nose crank seal
    "Big nose" 1991-05 front main/crankshaft seal
    $6.49
    Recommended with every timing belt change. Learn More
  40. 1990-93 head gasket set
    1990-93 head gasket set
    $349.00
    Ships for free!
    A complete head gasket kit. Learn More
  41. Rear main/crankshaft seal for NA/NB
    Rear main/crankshaft seal for NA/NB
    $23.99
    We recommend changing this with every clutch change. Learn More
  42. 1.6 valve cover gasket
    Valve cover gasket (NA6)
    $24.99
    Prevent unsightly leaks. Learn More
  43. 1.6 0.040" Cometic metal head gasket
    1.6 0.040" Cometic metal head gasket
    $119.00
    Ships for free!
    Multi-layer steel to replace the factory composite item. Learn More
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