MAHLE 929928142T Piston Kit with TBC (92.50mm x 30.3mm CH, 79.0mm stroke, 130.5mm rod, 23mm pin, -16.0cc, 347g, 8.2CR, 4032) for SUBARU 2.2L EJ20 Stroker

SUBARU 2.2L STROKER

• 1.2, 1.2, 2.5mm Performance Ring Set Included

MAHLE Motorsport Subaru Forged PowerPak and PowerPak+ piston kits offer superior reliability and performance, letting you take performance to the next level. Subaru pistons are designed by our Motorsport division with 4032 or 2618 alloy. PowerPak Plus pistons include a hard anodized top ring groove for extreme duty applications. From 2.0L EJ20, 2.2L Stroker, or the FA20 Turbo the best engine builders and drivers make no compromises, and they trust MAHLE Motorsport.

Advanced Features

• Slipper Skirt Style Forgings: strong, lightweight, low drag forging superior to the traditional full round design.
• Phosphate Coating: helps prevent microwelding in the ring grooves and pin galling.
• Grafal® Anti-Friction Skirt Coating: reduces drag, scuffing, friction, cylinder bore wear, and reduces piston noise.
• Hard Anodized Top Ring Grooves (PowerPak+ Piston Kits): extra protection against ring groove microwelding for extreme duty applications.
• 4032 or 2618 Aluminum Alloy: whether building a street engine or an all out race engine, both 4032 and 2618 alloys are available depending on the application.
• Boxed Strut Construction (Available for the WRX 2.5L STi only): added strength for extreme duty applications.

Introducing Thermal Barrier Coating

Thermal Barrier Coating is a ceramic based application that helps reduce heat transfer and protect the piston crown.

• Durable and resistant to Thermal Shock
• Designed to withstand the demands of the harshest engine environments

Specifications

• Bore, in: 3.642
• Bore, mm: 92.50
• Stroke, mm: 79.0
• Rod, mm: 130.5
• Compression height, mm: 30.3
• Piston Style: Dish, with 4 valve reliefs
• Crown volume, cc: -16
• Piston weight, g: 347
• Piston material: Forged, 4032
• Pin diameter, in: 0.905
• Pin diameter, mm: 23
• Pin length, in: 2.26
• Pin length, mm: 57.404
• Pin wall thickness:0.187
• Pin material:Steel
• Pin mass, g: 124
• Pin style: Floating
• Pin Included: Yes
• Clip style: Round Wire
• Clips Included: Yes
• Piston ring thickness: 1.2mm, 1.2mm, 2.5mm
• Rings Included: Yes
• Top compression ring thickness, mm: 1.2
• Top compression ring material: Stainless Steel
• Top compression ring coating: Gas Nitrided
• 2nd compression ring thickness, mm: 1.2
• 2nd compression ring material: Cast Iron
• 2nd compression ring coating: Phosphate
• Oil ring thickness, mm: 2.5
• Oil ring material: Chrome plated stainless steel
• Oil ring tension: Standard
• Package: Sold as a set of 4
• Coatings: Phosphate + Grafal + Hard Anodized top ring groove + TBC