Wiseco Toyota 2JZ -5.5cc Flat Top 86.25mm Piston Set Shelf Stock

This is a set of four Wiseco forged pistons designed for the Toyota 2JZ engine. You get the pistons themselves, ready for installation. These are flat-top pistons with a -5.5cc dish, meaning they sit flush with the cylinder deck when installed, which is a common setup for naturally aspirated or mild turbo builds where you want to maintain a specific compression ratio. The bore size is 86.25mm, which is the standard bore for many 2JZ applications, making these a direct replacement for stock or a common size for a rebuild.

Wiseco is well-known for making strong internal engine components, and these pistons are no exception. They are forged from a high-strength aluminum alloy, which is much more durable and resistant to detonation than cast pistons. This makes them a popular choice when you're looking to build an engine that can handle more power, higher boost levels, or just needs to be rebuilt with reliable parts. The flat-top design is versatile; it works well with various head gasket thicknesses and combustion chamber designs to achieve your target compression. They are designed to fit right into your 2JZ block with the correct connecting rods and bearings.

When rebuilding your 2JZ, choosing the right pistons is crucial for the engine's longevity and performance. These Wiseco pistons offer a solid foundation for a wide range of builds, from a street-driven car looking for improved reliability to a more serious performance application. Remember to check your connecting rod specifications and crankshaft stroke to ensure they pair correctly with these pistons for your desired final compression ratio. Due to emissions regulations, these pistons are not CARB approved and cannot be shipped to California.