3.4L Capacity Upgrade Kit Forged Piston Kit

The HKS Capacity Upgrade Kit is a high-performance forged piston kit engineered to enhance the 2JZ-GTE engine's capabilities, increasing its displacement to 3.4L. Developed with drag racing in mind, this kit is capable of supporting approximately 1000ps power levels. It features pistons with nickel plating on the top for superior anti-knocking performance and Ober coating on the skirts. The kit also includes H-beam connecting rods and a billet full counter-weighted crankshaft, creating a robust package for demanding applications. Key specifications of this upgrade include a larger bore of 87.0mm (compared to the stock 86.0mm) and an increased stroke of 94.0mm (from the stock 86.0mm), resulting in a total displacement of 3,352.8ml. The compression ratio can be adjusted based on gasket thickness, with options for 1.2mm (8.8:1), 1.6mm (8.6:1), and 2.0mm (8.3:1). Installation of this kit requires boring and honing of the cylinder block. Full flow modification is not required. The kit is designed for direct fitment in various Toyota Aristo and Supra models equipped with the 2JZ-GTE engine, covering specific year ranges from 10/1991 to 08/2002. It is important to note that compatibility is based on maker data for JDM cars, and buyers are advised to conduct their own research to confirm fitment for their specific vehicle.