CP Piston & Ring Set for Nissan RB30/RB25DET -Bore (87.0mm) -Size (+1.0mm) -CR (8.5) - SINGLE PISTON

If you're rebuilding the engine in your Nissan RB30 or RB25DET, a strong, well-built piston is key to reliable performance. This single forged piston from CP Pistons is designed to handle the demands of a performance build, offering a solid foundation for your engine's internals. It's built to the exact specifications needed for these popular Nissan engines.

This piston features an 87.0mm bore with a +1.0mm oversize, meaning it's intended for engines that have been bored out to accommodate this larger size, often during a rebuild to refresh cylinder walls or increase displacement. The 8.5:1 compression ratio is a common target for naturally aspirated or moderately boosted applications, striking a good balance between power and drivability. CP Pistons are known for their robust construction, using forged aluminum to create a piston that's both lightweight and incredibly strong, capable of withstanding higher cylinder pressures than cast pistons.

Remember that this piston is sold individually, so be sure to order the correct quantity for your engine. It's also important to note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.