Wiseco K727M8625 Forged Pistons for 2013-2021 Subaru BRZ / Toyota 86 / FA20

Vehicle Fitment

• Subaru FA20 engine -- all variants (naturally aspirated and turbocharged)
• 2013-2021 Subaru BRZ (FA20D)
• 2013-2016 Scion FR-S (FA20D)
• 2017-2021 Toyota 86 (FA20D)
• 2014-2018 Subaru Forester XT (FA20DIT, turbocharged)
• Other Subaru/Toyota FA20-equipped applications
• Note: 86.25mm bore -- requires machined/bored block; verify bore size before ordering

Fitment Notes

• Engine: Subaru FA20 (all variants)
• Bore diameter: 86.25mm -- overbore application, block must be machined to match
• Stock FA20 bore is 86.0mm -- this is a +0.25mm overbore piston
• Professional Series -- designed for heavy to severe duty race builds
• Wrist pin diameter: 0.866 in. (22mm) -- floating pin design
• Set of 4 -- fits one complete FA20 engine

Features

• Forged from 2618 aluminum -- improved tensile strength for high-boost/high-RPM use
• ArmorGlide® skirt coating -- seizure resistance, friction reduction, quieter operation
• Strutted forging design -- reduced weight without sacrificing strength
• Precision ring grooves with anti-detonation groove
• Forced pin oiling -- superior lubrication under severe duty conditions
• Fully machined crown
• Premium ring set included
• Wrist pin included
• Engineered, forged, and machined in the USA

Specifications

• Part Number: K727M8625
• Series: Professional
• Engine: Subaru FA20
• Bore Diameter: 86.25mm
• Compression Height: 32.66mm
• Piston Volume: -9.50 CC (dish)
• Piston Material: 2618 aluminum
• Forging Type: Strutted
• Skirt Coating: ArmorGlide®
• Wrist Pin Style: Floating
• Wrist Pin OD: 0.866 in. (22mm)
• Top Compression Ring: 1.0mm
• Second Compression Ring: 1.2mm
• Oil Ring: 2.8mm
• Quantity: Set of 4
• Ring Set Included: Yes
• Wrist Pin Included: Yes
• GTIN: 00193564090683

Included Components

• 4x Wiseco Professional Series forged pistons
• 1x Premium ring set (top, second, oil rings)
• 4x Floating wrist pins

Product Description

The Wiseco K727M8625 is a Professional Series forged piston set for the Subaru FA20 engine at an 86.25mm bore (+0.25mm overbore). Forged from 2618 aluminum alloy and built for heavy to severe duty race applications, these pistons are loaded with features typically found only in full custom builds. ArmorGlide® skirt coating reduces friction and resists seizure, forced pin oiling ensures lubrication under the most demanding conditions, and the strutted forging keeps weight low while maintaining the strength needed for high-boost or high-RPM builds.

Block must be professionally bored and honed to 86.25mm before installation. Includes premium ring set and floating wrist pins. Engineered, forged, and machined in the USA.