Supertech Mitsubishi 4B11T 86.07mm Bore -4.6cc Dish 9:1 CR Pistons - Set of 4 (Excl Rings)

Supertech offers a set of four forged pistons specifically for the Mitsubishi 4B11T engine, featuring an 86.07mm bore and a 9:1 compression ratio with a -4.6cc dish. These pistons are a solid choice for anyone rebuilding or modifying their 4B11T engine for increased performance. Forged construction means they are built to handle higher cylinder pressures and temperatures than cast pistons, making them suitable for boosted applications or more aggressive engine builds.

The 86.07mm bore size is a common upgrade for the 4B11T, allowing for a slight increase in displacement over the stock bore. The 9:1 compression ratio is a versatile target, providing a good balance between power output and drivability, and it works well with forced induction setups. The -4.6cc dish in the piston crown helps achieve this compression ratio when paired with the appropriate cylinder head volume. It's important to note that these pistons do not include piston rings; you will need to source those separately to complete the installation. This set is designed as a direct replacement for the factory pistons, though professional installation is recommended to ensure proper fitment and performance.

When planning your engine build, consider the overall goal. These Supertech pistons are a foundational component for a stronger engine. Ensure you have the necessary supporting modifications and that your engine assembly is done with precision. Remember to consult your engine builder or a trusted mechanic for specific recommendations regarding your build, including appropriate ring sets and assembly procedures.