Manley 621002C-1 Platinum Series Forged Piston 99.75mm Bore 75mm De-Stroke Dish Single

The Manley 621002C-1 Platinum Series Piston is a precision-engineered forged performance piston designed for Subaru EJ257 engines with 75mm de-stroked builds. This single piston features a 99.75mm bore diameter (+0.25mm overbore) with a 1.285" compression distance and dish design for an 8.5:1 compression ratio, making it ideal for turbocharged and high-boost applications.

Key Features:

• Forged from high-strength 2618 aluminum alloy for extreme durability under high heat and pressure
• 99.75mm bore diameter with dish piston design for optimized compression ratio
• 1.285" compression distance specifically for 75mm de-stroked crankshafts (2.35L displacement)
• Proven cam and barrel skirt profiles for maximum power while protecting cylinder walls
• Tool steel wrist pin included at no additional charge
• Molybdenum-coated skirts for reduced friction and improved break-in
• Single-operation fixturing ensures perfect ring groove to skirt squareness for maximum sealing
• Premium piston rings included with compatible ring widths: 1.2mm x 1.2mm x 2.0mm
• Round wire locks and premium chrome-moly wrist pin included

Recommended Clearances: 0.0035" for highly boosted applications, measured 1.100" from the bottom of the oil ring groove. Manley Platinum Series pistons are trusted by professional engine builders and elite tuners worldwide for their superior reliability and performance in demanding racing and street applications.