Forged Aluminum Piston Set for Toyota 20R/22R Engines

The Wiseco Piston, Shelf Stock Kit is engineered for Toyota 20R and 22R engines, providing enhanced performance and reliability. These pistons are forged from aluminum, a process that results in greater strength and tighter tolerances compared to cast or Hypereutectic alternatives. Wiseco's advanced forging, heat-treat, and finishing processes ensure that these pistons meet the demands of high-performance applications. This kit includes a complete set of pistons, rings, pins, and locks, ready for installation. The pistons feature a bore diameter of 92.50 mm, a compression height of 38.95 mm, and a pin diameter of 0.866 inches. With a combustion chamber volume of 24.70 cc, they achieve a compression ratio of 9.89:1. The bore is oversized by .020 inches, accommodating specific engine builds. These pistons are ideal for sport compact vehicles, offering superior durability on both street and track.