HKS Ni Piston Kit RB26 87 S2

This is the HKS Ni Piston Kit for the RB26 engine, specifically the 87 S2 variant. If you're rebuilding the heart of your RB26-powered vehicle and aiming for serious performance, forged pistons are a critical component. They offer a significant strength improvement over cast pistons, allowing your engine to handle higher boost pressures and more aggressive tuning without risking piston failure. HKS is well-known for producing high-performance engine parts, and this piston kit is designed to meet the demands of a performance-oriented build.

The 'Ni' in the name refers to the nickel plating on these pistons, a feature that HKS utilizes to improve their durability and reduce friction within the cylinder bore. This plating helps the pistons withstand the extreme temperatures and pressures generated during high-performance operation. The 87mm bore size is specific to certain RB26 configurations, so it's important to ensure this is the correct size for your engine build. These pistons are forged from a strong aluminum alloy, which provides a good balance of light weight and robust construction necessary for racing or heavily modified street applications. They are designed as a direct replacement for the stock pistons, simplifying the installation process for a professional engine builder.

When undertaking an engine rebuild with performance pistons like these, it's essential to have all the necessary supporting components. This includes new piston rings, wrist pins, and connecting rod bearings, which are typically included in a comprehensive kit like this. Always refer to the manufacturer's installation instructions for precise details on assembly and break-in procedures to ensure the longevity and optimal performance of your engine. Please note that this kit is not CARB approved and cannot be shipped to California.