Supertech Ford/Mazda 2.0L/2.3L 89mm Bore +0.5cc Dome 12.8:1/11.5:1 CR Pistons- Set of 4 (Excl Rings)

These Supertech pistons feature a +0.5cc dome volume, designed to achieve a 12.8:1 compression ratio with a 50cc chamber or 11.5:1 with a 55cc chamber. This specific dome design is crucial for tuning your 2.0L or 2.3L Ford/Mazda engine for improved performance, especially when paired with cylinder heads that have a specific combustion chamber volume. The 89mm bore size is a key measurement for rebuilding or upgrading these popular displacement engines.

Forged from high-strength aluminum alloy, these pistons are built to withstand the increased cylinder pressures and temperatures common in performance applications. The forging process creates a denser, more durable grain structure compared to cast pistons, making them a solid choice for engines that see hard use or are being built for higher horsepower levels. Each piston in this set of four is precisely machined to ensure consistent performance and proper fit within the cylinder bore. Remember that this set does not include piston rings, so you'll need to source those separately to complete the installation.

When undertaking an engine rebuild with these pistons, it's important to have your cylinder heads measured to confirm their combustion chamber volume. This will allow you to accurately calculate your final compression ratio and ensure it aligns with your engine's intended use and fuel octane. Always refer to the manufacturer's detailed installation instructions for proper ring installation, piston-to-wall clearance, and assembly procedures.