Supertech Honda B16 81.02mm Bore 7.5cc Dome 11:1 CR Pistons - Set of 4 (Excl Rings)

This set includes four Supertech forged pistons, each with an 81.02mm bore and a 7.5cc dome volume, designed to achieve an 11:1 compression ratio for your Honda B16 engine. These pistons are a critical component for rebuilding or upgrading your engine's top end, directly impacting performance and power output. They are made from high-strength aluminum, a material chosen for its excellent strength-to-weight ratio, which helps reduce reciprocating mass in the engine. This can lead to improved engine response and higher RPM capabilities.

The forged construction means these pistons start as a solid block of aluminum that is heated and then pressed into shape under extreme pressure. This process aligns the metal's grain structure, making the resulting piston significantly stronger and more resistant to detonation and thermal stress compared to cast pistons. The 11:1 compression ratio is a popular choice for naturally aspirated B16 builds, offering a noticeable increase in power without requiring extreme octane fuel in many setups. It's important to note that these pistons are sold without piston rings; you will need to source those separately to complete the installation. Proper balancing of the rotating assembly is also recommended when installing new pistons to ensure smooth engine operation.

When rebuilding your B16, consider the overall goal for your engine. These pistons are well-suited for builds aiming for improved street performance or track use. Always ensure your engine's cylinder walls are properly honed to the correct specification for the piston size and that you follow the manufacturer's recommended clearances and installation procedures. Because these pistons are not CARB approved, they cannot be shipped to California.