CP Single Piston & Ring for Nissan RB25DET - Bore (86.5mm) - Size (+0.5mm) - Compression Ratio (8.5)

If you're rebuilding the engine in your Nissan RB25DET, a solid piston is key to getting it back to running strong. This single piston from CP Pistons is built for that job, offering a specific bore size and compression ratio to match your engine's needs.

This piston measures 86.5mm in bore diameter and is a +0.5mm size, meaning it's intended for an engine block that has been bored out to accommodate this slightly larger size. It's designed to achieve an 8.5:1 compression ratio, which is a good balance for many performance builds, offering a bit more grunt without being overly sensitive to fuel quality. CP Pistons are well-built, and this forged piston is designed to handle the demands of a performance engine.

Remember, this piston is not CARB approved and cannot be shipped to California. Always refer to your engine's specific rebuild manual for installation details and ensure all related components are in good condition before assembly.