Wiseco Acura K20 K24 FLAT TOP 1.181X87MM Piston Shelf Stock Kit

When you're rebuilding the heart of your performance Honda or Acura, starting with a solid set of pistons is key. This Wiseco K631M87 piston kit gives you four flat-top pistons, each with an 87mm bore, designed for K20 and K24 engines. These aren't just any pistons; they're forged from 2618 aluminum right here in the USA, a material chosen for its improved tensile strength, which is crucial when you're pushing an engine hard. The kit includes everything you need to get these pistons installed, ready for your next build.

Wiseco engineers these pistons with serious racers and builders in mind, packing them with features that stand up to heavy to severe duty applications. You'll find precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal. They also come with an ArmorGlide skirt coating, which helps reduce friction, resist seizure, and even makes for quieter operation. The fully machined crown and forced pin oiling are details that show these pistons are built to handle the demands of performance driving and racing.

Because these are designed for demanding builds, it's important to note they are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and any additional components or procedures needed for your specific engine build.