CP Piston & Ring Set for Nissan RB26DETT - Bore (87.0mm) - Size (+1.0mm) - Compression Ratio (8.5)

This is a complete piston and ring set from CP Pistons, designed for the Nissan RB26DETT engine. Inside this box, you'll find the pistons themselves, along with the necessary rings to complete the assembly. These are forged pistons, meaning they start as a solid block of aluminum that's heated and hammered into shape, creating a much stronger and more durable component than cast pistons. This process is crucial for engines that see high performance use or are being rebuilt with upgraded components.

The pistons in this set are sized for an 87.0mm bore, which is a +1.0mm overbore from the stock RB26DETT dimensions. This is common when rebuilding an engine to clean up cylinder walls or to increase displacement slightly. They are designed to achieve a compression ratio of 8.5:1, which is a good target for boosted applications where you need to manage detonation while still making good power. The forged construction and specific sizing make these a solid option for builders looking to get the most out of their RB26DETT engine, whether for track use or a high-performance street build.

It's important to note that this kit is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures, especially when dealing with overbored cylinders and specific compression ratios.