Wiseco Professional Series Forged Piston
2005–2010 Scion tC 2AZ-FE 2.4L I4
6641M89
Overview:
The Wiseco Professional Series forged piston is engineered for serious racers and high-performance builders seeking maximum 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 under heavy to severe duty race conditions.
Crafted from premium 2618 aluminum alloy and manufactured in the USA, this piston offers enhanced tensile strength and superior resistance to extreme operating environments. Whether you’re building a track-focused race engine or a high-output street machine, the Wiseco Professional Series piston helps you push your build beyond conventional limits.
Key Features:
Wiseco’s Professional Series pistons incorporate advanced design and manufacturing techniques to ensure optimal performance and longevity:
- Forged from high-strength 2618 aluminum alloy for superior durability and tensile strength.
- Precision-machined ring grooves and an anti-detonation groove to improve ring seal and reduce the risk of detonation.
- ArmorGlide skirt coating reduces friction, resists seizure, and promotes quieter piston operation.
- Fully machined crown with a -29cc reverse dome shelf design tailored for the 2AZ-FE engine.
- Forced pin oiling system enhances wrist pin lubrication and durability under high loads.
- Compression height of 33.25 mm and pin diameter of 0.866 inches ensure exact fitment and compatibility.
- Supplied with premium piston rings engineered for racing and severe duty applications.
- Designed and built in the USA to meet the demands of professional and serious amateur race builds.
Construction & Design:
This piston is forged and machined in the USA from 2618 aluminum, a material known for its excellent strength and fatigue resistance in high-performance engines. The ArmorGlide skirt coating minimizes friction and protects against seizure, which is critical during high-RPM operation and extreme thermal conditions.
The piston’s reverse dome shelf design with a -29cc volume is optimized for the Scion tC’s 2AZ-FE engine, helping to achieve the desired compression ratio and combustion characteristics for performance tuning. The fully machined crown and precision ring grooves ensure consistent sealing and durability, while the forced pin oiling system improves wrist pin life under racing stresses.
Installation & Fitment:
This Wiseco Professional Series piston is a direct fit replacement designed specifically for the Scion tC Base models from 2005 through 2010 and the Scion tC Spec models from 2007 to 2008 with the 2AZ-FE engine. It is intended for use in high-performance or race engine builds requiring forged components.
Installation requires professional engine assembly practices. No modifications to the engine block or connecting rods are typically necessary when upgrading to this piston, but proper machining and clearances should be verified during installation.
What’s Included
- One Wiseco Professional Series forged piston
- Premium piston rings designed for racing applications
Ideal For:
- Serious racers and performance builders upgrading the Scion tC 2AZ-FE engine
- Heavy to severe duty race engine builds requiring high-strength forged pistons
- Enthusiasts seeking improved durability and performance over stock cast pistons
- Engine builders focused on maximizing power and reliability in sport compact applications
