Supertech Performance P4-DU88-P1 Forged Piston Sold Individually

Supertech Performance P4-DU88-P1 forged pistons are precision-engineered from extruded high-silicon 4032 aluminum alloy, enhanced with additional copper, nickel, and magnesium for superior performance under extreme conditions. This advanced alloy delivers low thermal expansion, excellent wear resistance, and high thermal conductivity — and has been proven to withstand up to 42 PSI of boost on alcohol fuel without failure.

Key Features:

• Premium 4032 Forged Alloy: Enhanced with Cu, Ni, and Mg for superior strength, thermal stability, and wear resistance
• Multi-Step Forging Process: Two or three-step forging produces a refined structural grain for maximum durability
• CNC Machined: Precision-machined on state-of-the-art CNC equipment for tight tolerances and consistent quality
• Heat Treated: Multiple heat treatment cycles deliver high tensile strength and evenly distributed hardness throughout the piston
• Contact Reduction Grooves: Standard fitment reduces friction and improves ring seal
• Honed and Reamed Pin Bores: Precision pin bores ensure exact wrist pin fitment for reduced play and improved reliability
• Chrome-Moly Wrist Pins: Cold-extruded chrome moly steel wrist pins provide exceptional strength, retained by wire clip locks
• Phosphate Dry Lubricant Coating: Applied to the skirt and ring grooves to prevent micro-welding and enhance lubrication during break-in and operation

Compression Ratio Notes: Compression ratios are calculated using a 0.030" head gasket and 0.010" deck clearance unless otherwise specified for the individual part number.

Sold Per Piston. Order the quantity matching your engine's cylinder count (e.g., quantity of 4 for a 4-cylinder engine).