FEATURED BRAND = COVERKING CHECK OUT COVERKING NOW

Auto Barn
Est. 1957
Supertech

Supertech Mazda Miata 1.8L Black Nitrided Exhaust Valve - +1mm Oversize - Set of 8

$203.80

Only 3 left in stock

Supertech Mazda Miata 1.8L exhaust valves. Set of 8, +1mm oversize, black nitrided.

Key Features

  • Set of 8 black nitrided exhaust valves for Mazda Miata 1.8L engines.
  • Each valve is +1mm oversize compared to stock, aiding in improved sealing and airflow.
  • Black nitrided surface treatment enhances hardness, wear resistance, and reduces friction.
  • Well-built components suitable for engine rebuilds and performance applications.
Secure CheckoutFast Shipping631-982-0042
About this part

Product Details

If you're rebuilding the top end of your Mazda Miata's 1.8L engine, especially if you're looking to improve airflow or replace worn components, these Supertech exhaust valves are a solid option. This set includes eight valves, each designed to be 1mm larger than stock. This oversize design can help increase the valve's sealing surface area, potentially improving cylinder sealing and performance when paired with appropriate head work.

These valves feature a black nitrided surface treatment. This process hardens the valve face and stem, making it more resistant to wear and heat. The nitriding also creates a smoother surface, which can reduce friction in the valve guide and improve oil retention. They are well-built for the demands of an engine rebuild, offering a good balance of performance and durability for your Miata.

Specifications

Brand
Supertech
Manufacturer Part #
MAEVN-1206-8
UPC
01037721244506

Frequently Asked Questions

Supertech Mazda Miata 1.8L Black Nitrided Exhaust Valve - +1mm Oversize - Set of 8

$203.80