Supertech Ford/Mazda 2.0L/2.3L 90mm Bore -2cc Dome 12.5:1 CR Pistons - Set of 4 (Excl Rings)

If you're rebuilding the top end of your Ford or Mazda 2.0L or 2.3L engine and looking to significantly increase compression, this set of Supertech pistons is a solid choice. These pistons are designed to raise the compression ratio to 12.5:1, which can lead to improved power output when paired with appropriate tuning and supporting modifications. The -2cc dome volume is a specific design feature that contributes to this higher compression, making them suitable for naturally aspirated builds aiming for more performance or forced induction setups where higher compression is desired for specific tuning goals.

Crafted from forged aluminum, these pistons are built to withstand the increased pressures and temperatures associated with higher compression ratios and performance applications. The 90mm bore size is a direct replacement for stock dimensions on many 2.0L and 2.3L engines, simplifying installation. It's important to note that these pistons are sold as a set of four and do not include piston rings, so you'll need to source those separately. This allows you the flexibility to choose rings that best match your specific build requirements, whether that's for extreme durability or optimal sealing.

When installing these pistons, proper balancing of the rotating assembly is crucial, especially with performance-oriented components. Ensure you consult your engine's service manual for detailed installation procedures and torque specifications. Remember that a higher compression ratio will require careful attention to fuel octane and engine tuning to prevent detonation and ensure reliability. These pistons are not CARB approved and cannot be shipped to California.