Supertech Performance P4-DU88-N2 Forged Racing Piston

The Supertech Performance P4-DU88-N2 is a high-performance forged piston engineered for demanding motorsport and high-boost street applications. Machined from extruded 4032 high-silicon alloy enhanced with additional copper, nickel, and magnesium, these pistons deliver low thermal expansion, excellent wear resistance, and superior thermal conductivity. This proven alloy has withstood boost pressures of up to 42 psi on alcohol fuel without failure.

Key Features:

• Forged via a two or three-step forging process that produces a refined structural grain for maximum strength and durability
• Precision-machined through multiple stages on state-of-the-art CNC equipment for tight tolerances
• Multiple heat treatment cycles provide high tensile strength and evenly distributed hardness throughout the piston body
• Contact reduction grooves machined as standard to minimize friction and improve ring seal
• Pin bores are honed and reamed for a precise wrist pin fit
• Wrist pins constructed from cold-extruded chrome-moly steel for exceptional strength; secured with wire clip locks
• Phosphate dry lubricant coating applied to the skirt to reduce friction, protect rings from micro-welding, and enhance lubrication in the skirt/cylinder interface

Compression ratios are calculated using a 0.030" head gasket and 0.010" deck clearance unless otherwise specified per application.

Sold per piston. Order the quantity equal to the number of cylinders in your engine (e.g., quantity of 4 for a 4-cylinder engine).