McLeod RST HD Twin Disc Clutch Kit with Aluminum Flywheel (6305907MD) - 2009+ GM LSX 9-Bolt Retrofit Applications
Take your high-horsepower GM LSX build to the next level with the McLeod RST HD Twin Disc Clutch Kit. Designed for retrofit applications using 2009 and newer 9-bolt LSX crankshafts, the RST HD delivers the perfect balance of street-friendly drivability and track-ready performance. Rated to handle up to 950 horsepower, this twin-disc clutch system bridges the gap between McLeod's proven RST and RXT clutch lines, making it an excellent choice for aggressive street cars, drag racers, and road course builds.
The RST HD utilizes an innovative hybrid clutch disc design featuring smooth-engaging organic friction material on one side and high-bite segmented ceramic material on the other. This combination provides increased torque capacity while maintaining light pedal effort and minimizing drivetrain shock. Paired with a lightweight billet aluminum flywheel, the system offers improved throttle response, reduced rotational mass, and reliable performance under demanding driving conditions.
Features
- Designed for 2009 and newer GM LSX 9-bolt crankshaft retrofit applications
- Rated to support up to 950 horsepower
- Twin-disc clutch design for increased torque capacity and heat management
- Hybrid organic and segmented ceramic friction discs
- Smooth engagement with excellent street drivability
- Ideal for high-performance street and track applications
- Diaphragm-style pressure plate for light pedal effort
- Includes lightweight billet aluminum flywheel
- 168-tooth flywheel with internal engine balance
- Designed for 1-1/8-inch, 26-spline transmission input shafts
- Includes installation hardware and alignment tool
Specifications
- Part Number: 6305907MD
- Horsepower Rating: 950 HP
- Disc Quantity: 2
- Disc Diameter: 9.688 inches
- Input Shaft Diameter: 1.125 inches
- Input Spline: 26
- Disc Material: Organic / Ceramic
- Disc Style: Full Face / Segmented
- Hub Style: Solid
- Pressure Plate Style: Diaphragm
- Flywheel Material: Billet Aluminum
- Engine Balance: Internal
- Ring Gear: 168 Tooth
- Crankshaft Bolt Pattern: 9-Bolt
- Throwout Bearing: Not Included
- Pilot Bushing: Not Included
Fitment
- 2009 and newer GM LSX engines with a 9-bolt crankshaft (Retrofit applications only)
Additional Notes
- For retrofit applications only.
- Designed for engines equipped with a 9-bolt crankshaft, 168-tooth flywheel, and 1-1/8-inch, 26-spline transmission input shaft.
- Installation hardware and alignment tool are included.
- Throwout bearing and pilot bushing are not included and must be purchased separately if required.
- Ideal for high-horsepower street and track vehicles requiring increased torque capacity with smooth engagement.
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