Wiseco Acura 4v Domed +8cc STRUTTED 86.0MM Piston Shelf Stock Kit

If you're rebuilding the engine in your 2002-2006 Acura RSX, especially for a performance build, a solid set of pistons is crucial. This Wiseco shelf stock piston kit is designed to handle the demands of a modified K-series engine. These pistons feature a domed top with an 8cc volume, which is important for setting your compression ratio when paired with specific cylinder heads and head gaskets. The 86.0mm bore size is a common upgrade for these engines, offering a slight increase in displacement over stock.

Wiseco is known for its forged pistons, and this kit is no exception. Forging is a process that shapes aluminum under extreme pressure, creating a much stronger and more durable piston than cast alternatives. This strength is essential for engines that see higher cylinder pressures from forced induction or increased compression. The "strutted" design refers to internal bracing within the piston, further reinforcing its structure to prevent flexing or cracking under load. These pistons are built to fit right into your RSX's K-series block, making them a reliable choice for your engine build.

This kit includes the pistons themselves, ready for your machine shop to hone the cylinders to the correct size. Remember that these pistons are intended for performance applications and are not CARB approved, meaning they cannot be legally shipped to California. Ensure you have the correct ring set and connecting rods for your build, as these are typically sold separately.