Specifications
- Brand
- SPEC
- Part #
- SCLS4F40G6MT2

Spec 99-24 GM LS4 Recessed Flywheel to F40 6SP Gearbox Mini Twin Clutch Kit
$1667.33
Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.
Spec Mini Twin Clutch Kit for GM LS4 to F40 6SP Gearbox. This kit is designed for high-torque applications.
Key Features
- This clutch kit is designed for GM LS4 engines paired with an F40 6-speed gearbox.
- Features a mini twin-plate clutch design for increased torque capacity and heat dissipation.
- Includes a sprung hub clutch disc to help absorb drivetrain shock and vibration.
- Comes with a recessed flywheel specifically engineered for the LS4 to F40 transmission connection.
- The multi-plate configuration offers greater clamping force compared to a single-disc setup.
Product Details
The clutch disc in this SPEC Mini Twin clutch kit uses a sprung hub design, which helps absorb shock and vibration when engaging the drivetrain. This is a well-built kit designed to handle the demands of a GM LS4 engine paired with an F40 6-speed gearbox, especially when you're looking to put down serious power. The mini twin-plate setup means you get a larger friction surface area compared to a single disc, which is crucial for managing the heat generated during aggressive driving or in high-torque situations.
SPEC has engineered this kit with performance and durability in mind. The kit includes a recessed flywheel specifically designed for the LS4 engine to mate correctly with the F40 transmission. This attention to detail ensures proper fitment and function, which is critical for a smooth and reliable clutch operation. The multi-plate design is a key feature here, offering significantly more clamping force and a greater ability to dissipate heat than a conventional single-disc clutch. This translates to a clutch that can withstand more abuse and maintain its performance under strenuous conditions.
When installing a high-performance clutch like this, it's important to ensure all supporting components are in good condition. This includes the clutch hydraulics and the transmission itself. Because this is a specialized kit for a specific engine and transmission combination, it's recommended to consult the manufacturer's installation guide for precise details on setup and break-in procedures to get the most out of its performance and longevity.
Specifications
- Brand
- SPEC
- Manufacturer Part #
- SCLS4F40G6MT2
Frequently Asked Questions
You Might Also Like
Similar products from the same category
Spec 99-24 GM LS4 Recessed Flywheel to F40 6SP Gearbox Mini Twin Clutch Kit




