Top Street Performance V Series LS Gen III Intake Manifold 81406 with 102.5 mm Throttle Body Flange

Upgrade your GM LS-Series engine with the Top Street Performance V Series Intake Manifold, part number 81406. Designed for LS Gen III applications, this multi-port manifold features a cathedral-port cylinder head configuration and an aluminum construction with a natural finish. Its 102.5 mm throttle body flange provides a strong foundation for high-performance induction systems and is suited to builds that require increased airflow potential and reliable component fitment.
The V Series LS Gen III intake manifold is engineered to support performance-focused street, track, and custom engine applications. Its billet aluminum design delivers a combination of strength, durability, and clean appearance, while the cathedral-port layout is tailored to compatible GM LS-Series cylinder heads. The kit format makes it a practical choice for replacing an existing intake manifold or assembling a purpose-built LS induction system.
Feature: Brand - Top Street Performance
Feature: Part Number - 81406
Feature: Application - GM LS-Series and LS Gen III engines
Feature: Design - V Series multi-port intake manifold
Feature: Throttle Body Flange - 102.5 mm
Feature: Cylinder Head Port Style - Cathedral port
Feature: Material - Aluminum
Feature: Finish - Natural
Feature: Configuration - Intake manifold kit
Feature: Use - Performance street, track, and custom engine builds
The Top Street Performance 81406 intake manifold is intended for enthusiasts and builders seeking a durable, performance-oriented solution for compatible LS Gen III combinations. Confirm cylinder head, throttle body, fuel system, accessory, and hood-clearance compatibility before installation. With its application-specific port design and large throttle body flange, this manifold offers a solid upgrade path for GM LS-Series performance projects.

Features:

• Brand: Top Street Performance

• Part Number: 81406

• Application: GM LS-Series and LS Gen III engines

• Design: V Series multi-port intake manifold

• Throttle Body Flange: 102.5 mm

• Cylinder Head Port Style: Cathedral port

• Material: Aluminum

• Finish: Natural

• Configuration: Intake manifold kit

• Use: Performance street, track, and custom engine builds