Wiseco Professional Series Forged Piston
2005–2010 Scion tC 2AZ-FE 2.4L
6641M885
Overview:
The Wiseco Professional Series forged piston is engineered for serious racers and performance builders who demand the highest level of durability and precision. Designed specifically for the Scion tC models from 2005 to 2010 equipped with the 2AZ-FE 2.4L engine, this piston delivers exceptional strength and reliability for heavy to severe duty race applications.
Crafted from premium 2618 aluminum alloy and manufactured in the USA, this piston is ideal for enthusiasts looking to push their engine’s limits while maintaining long-term durability. With advanced features that enhance performance and reduce friction, you’ll get a piston built to withstand the rigors of high-performance driving and racing conditions.
Key Features:
Wiseco’s Professional Series pistons incorporate advanced design and manufacturing technologies to ensure superior performance and longevity. Key features include:
- Forged from high-strength 2618 aluminum alloy for improved tensile strength and durability under extreme conditions.
- Precision-machined ring grooves and an anti-detonation groove to enhance ring seal and reduce the risk of engine knock.
- ArmorGlide skirt coating that resists seizure, reduces friction, and promotes quieter piston operation.
- Fully machined crown with a -29cc reverse dome shelf design optimized for the 2AZ-FE engine’s combustion chamber.
- Forced pin oiling system to improve lubrication and reduce wear on the wrist pin and piston pin bore.
- Compression height of 1.309 inches and pin diameter of 0.8661 inches, engineered for precise fitment and performance.
- Supplied as a single piston, allowing for custom engine builds and balanced assembly.
- Designed and built in the USA to meet the demands of heavy to severe duty racing and performance applications.
Construction & Design:
This Wiseco piston is forged and machined in the USA from premium 2618 aluminum, a material known for its excellent strength and fatigue resistance at high temperatures. The forging process ensures a dense, uniform grain structure that withstands the stresses of high-performance engines.
The piston’s skirt features the ArmorGlide coating, which minimizes friction against the cylinder wall and prevents seizure during intense operation. The fully machined crown with a reverse dome shelf design optimizes combustion efficiency and helps maintain proper compression ratios for the 2AZ-FE engine.
Additional design elements such as precision ring grooves and an anti-detonation groove improve ring sealing and reduce the likelihood of detonation, contributing to engine reliability and power output.
Installation & Fitment:
This piston is designed as a direct fit replacement for the Scion tC equipped with the 2AZ-FE engine from 2005 through 2010, including the Base and Spec trims. It is engineered to match OEM specifications for bore size (88.50 mm), compression height, and pin diameter, ensuring proper fitment and compatibility with factory components.
Installation should be performed by a professional engine builder or experienced technician to ensure correct clearances and assembly. This piston is intended for use in custom or race engine builds and may require additional machining or balancing depending on the application.
What’s Included
- One Wiseco Professional Series forged piston, -29cc reverse dome shelf design
- Premium piston rings included for optimal sealing and performance
Ideal For:
- Performance enthusiasts building high-output or race engines on the Scion tC 2AZ-FE platform
- Engine builders requiring durable, forged pistons for heavy to severe duty applications
- Racers and tuners seeking improved strength, reliability, and combustion efficiency
