The Wiseco K541M815AP Professional Series forged piston set is engineered for serious racing and high-performance street applications. Crafted from high-strength 2618 aluminum in the USA, these pistons are designed to withstand the demands of heavy-duty and severe-duty race builds. Each piston features precision-machined ring grooves, an anti-detonation groove, and enhanced sealing capabilities to optimize combustion efficiency and durability. The ArmorGlide skirt coating provides seizure resistance, reduces friction, and ensures quieter operation, making these pistons a reliable choice for demanding performance environments.

Built with a 30.00 mm compression height and a 0.827-inch piston pin diameter, this set is specifically designed for Honda B18 engines, with a bore size of 81.50 mm. The fully machined crown adds to the structural integrity, while forced pin oiling ensures consistent lubrication for extended engine life. The set includes four pistons, providing a complete solution for rebuilds and performance upgrades. These pistons are ideal for enthusiasts seeking to push their engine's limits with confidence, offering a combination of custom-level features and proven durability. Easy to install and precision-engineered, the Wiseco Professional Series pistons will help you achieve optimal performance in your race or high-performance street project.

Features:

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
• Precision ring grooves, anti-detonation groove, and additional ring seal improving features
• ArmorGlide skirt coating for seizure resistance, friction reduction, and quieter operation
• Designed and built to withstand heavy to severe duty performance applications
• Fully machined crown features for enhanced structural integrity
• Forced pin oiling for consistent lubrication and engine longevity