Forged Piston Kit 87.0mm Bore for RB25DET

The Tomei Forged Piston Kit 87.0 - ECR33 is engineered for the RB25DET engine, offering a performance upgrade with increased displacement. This kit features a bore size of 87.0mm, which is an increase from the OEM 86.0mm, raising the total engine displacement to 2556cc from the original 2498cc. Each kit is supplied with all necessary components for installation, including six pistons, six piston pins, six piston clips, and eighteen piston rings. The pistons themselves weigh 385g each, with the pins adding 106g, for a total piston assembly weight of 491g. Specifications for the rings include a top ring size of 1.20x3.10mm, a second ring of 1.20x3.90mm, and an oil ring of 2.50x3.10mm. The piston pin diameter is 21mm, and the overall piston length is 60.00mm. This piston kit is specifically designed for early model RB25DET engines found in the Nissan Skyline ECR33. Fitment is confirmed for the following production ranges: August 1993 to January 1995, January 1995 to January 1996, and January 1996 to May 1998. It is important to note that compatibility information is provided by the manufacturer for JDM cars only, and RHDJapan does not guarantee fitment. Buyers are advised to conduct their own research before purchasing, as after-sale support does not extend to installation assistance.