The CP single piston is a direct replacement piston for Nissan RB30/RB25DET applications, specified at 87.0 mm bore with a +1.0 mm oversize and a built compression ratio of 8.5. Supplied as a single piston, it is intended for engine rebuilds or repairs where a matched oversize piston is required to restore correct bore clearance and compression in the RB-series engine.
CP Piston & Ring Set for Nissan RB30/RB25DET -Bore (87.0mm) -Size (+1.0mm) -CR (8.5) - SINGLE PISTON