Big Block Chev MK5 & 6 168 Tooth External Balance Flexplate

Overview

Engineered by Aeroflow, the Big Block Chev MK5 & MK6 168-Tooth External Balance Flexplate is built for serious Big Block Chevy builds. This 168-tooth external balance flexplate delivers precise weight distribution and smooth rotational balance, ensuring dependable torque transfer between engine and torque converter even at high RPM and heavy torque loads.

Key Features

• 168-tooth external balance for accurate weight distribution
• Outside diameter: 14-1/8" (359mm) for optimal engagement with the converter
• Fits 1-piece rear main seal engines (MK5 & MK6)
• External balance configuration compatible with torque converters designed for external balancing
• Heavy-duty construction from extra-thick material with double welded joints
• Anodised finish for corrosion resistance and longevity
• Includes converter bolt pattern: 11.5"

Durability & Construction

The flexplate combines extra-thick material with robust, double-welded joints and an anodised surface, designed to endure peak horsepower, high RPM, and substantial torque while maintaining a consistent, balanced surface for smooth power delivery from engine to drivetrain.

Specifications

• Teeth: 168
• Outside diameter: 14-1/8" (359mm)
• Balance: External
• Engine family: Big Block Chevy MK5 & MK6
• Suits: 1-piece rear main seal
• Converter bolt pattern: 11.5"

Applications & Compatibility

Designed for 1991-and-up Big Block Chevy applications, making it a solid choice for street cars, drag-focused builds, and other high-performance projects where a robust, externally balanced connection between engine and torque converter is essential.

What’s Included

• 1 x 168-tooth external balance flexplate
• Converter bolt pattern: 11.5"