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HOLDEN
H SERIES

4.2 253 cu.in Red
July 1971 to September 1974

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If you're a proud owner of a July 1971 to September 1974 HOLDEN H SERIES HQ fitted with the 8 cylinder 253 cu. in Red engine, it's time to give your clutch an upgrade. Introducing the modular UniClutch system - the ultimate solution to unlocking the full potential of your classic car. Designed specifically for the Holden H Series HQ, this clutch system is built to deliver unbeatable performance and reliability. Whether you're hitting the open road or revving up at the racetrack, the UniClutch system will provide the power and control you need. With its unique modular design, the UniClutch system allows for easy installation and customization, ensuring a perfect fit for your specific vehicle. Plus, its high-quality materials and precision engineering guarantee long-lasting durability. Say goodbye to clutch slippage and gear grinding. Upgrade to the UniClutch system and experience smooth shifting, improved acceleration, and maximum power transfer. Don't settle for anything less than the best when it comes to your classic ride. Upgrade your clutch and take your July 1971 to September 1974 HOLDEN H SERIES HQ to the next level with the UniClutch system.
OPTIONS FOR A HOLDEN H SERIES 4.2 253 cu.in Red

Torque Capacity

Approximately 90 percent more torque capacity than OEM.
The UniClutch UC1024100 is a high-performance clutch that offers similar actuation effort to OEM models. With approximately 90 percent more torque capacity than OEM clutches, this clutch is specifically designed for upgrading a HOLDEN H SERIES vehicle. It outperforms OE clutches without any compromises. The UniClutch UC1024100 features a Twin Disc, Dual Core design that provides increased torque capacity. Its Billet Steel Components offer up to 3 times stronger construction, ensuring durability and reliability. The Silent Shift Technology improves shift quality and speed while reducing chatter, resulting in a smoother driving experience. One of the standout features of the UniClutch UC1024100 is its Integrated Flywheel Friction Surface, which eliminates the need for flywheel machining, saving both time and money during installation. The Radial Dampening Technology ensures torque spike dampening, further enhancing performance and longevity. Additionally, the Comfort Pedal Tune of the UniClutch UC1024100 makes it perfect for city driving, providing a smooth and comfortable pedal feel. In summary, the UniClutch UC1024100 is a highly capable clutch that offers superior performance compared to OEM models. With its advanced features such as Twin Disc, Dual Core design, Billet Steel Components, Silent Shift Technology, Integrated Flywheel Friction Surface, Radial Dampening Technology, and Comfort Pedal Tune, it is the ideal choice for those looking to upgrade their HOLDEN H SERIES vehicle.
The UniClutch UC1024100 is a high-performance clutch that offers similar actuation effort to OEM models. With approximately 90 percent more torque capacity than OEM clutches, this clutch is specifically designed for upgrading a HOLDEN H SERIES vehicle. It outperforms OE clutches without any compromises. The UniClutch UC1024100 features a Twin Dis...
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The UniClutch Sport UC1024200 is a high-performance upgrade for the HOLDEN H SERIES. With similar actuation effort to OEM, it offers approximately 110 percent more torque capacity. The twin disc design enhances torque handling and power delivery, making it suitable for daily driving enthusiasts. The Sport Pedal Tune provides a tailored performance experience, while the Dual Drive Forged Internals ensure exceptional strength for high torque applications. The High Clamp Billet Cover Assembly reduces cover flex, resulting in superior disengagement and eliminating dragging. The Forged Dual Drive Internals maximize clutch durability, while the Silent Shift Technology minimizes noise during gear changes. The Integrated Flywheel Friction Surface simplifies installation and maintenance. With reduced clutch wear, the UniClutch Sport UC1024200 offers a longer-lasting and cost-effective solution for those looking to upgrade their vehicle's clutch system.
The UniClutch Sport UC1024200 is a high-performance upgrade for the HOLDEN H SERIES. With similar actuation effort to OEM, it offers approximately 110 percent more torque capacity. The twin disc design enhances torque handling and power delivery, making it suitable for daily driving enthusiasts. The Sport Pedal Tune provides a tailored performance experience, while the Dual Drive Forged Internals ...
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Torque Capacity

Approximately 110 percent more torque capacity than OEM.

Pedal Effort

Similar actuation effort to OEM. Pedal release may be higher.

Pedal Effort

Similar actuation effort to OEM. Pedal release may be higher.
 
FITMENT KIT
The UniClutch fitment kit UCFK10311-A-001 is a necessary component for installing UniClutch Cores (UC1024100, UC1024200, UC1021200) into HOLDEN H SERIES vehicles. This fitment kit is carefully engineered to meet high standards and features a patented flex-fit installation system. Unlike traditional clutches, the Twin Disc sealed UniClutch can be installed much more quickly because it does not require the customer's factory flywheel to be machined. With the UniClutch fitment kit, any of the UniClutch Cores can be easily installed in your vehicle.
 
Important Note
Use when OEM Transmission Spline is 10 x 29mm, and OEM Cover Assembly Boltup PCD is 295.28mm, with Dowel PCD 295.275mm. Alternate US/CA part UCFK10313-U-001 uses Dowel Pos E | Suits OE Flywheel. | If unsure contact us to confirm your flywheel and transmission details
 
VEHICLE ID
990021476
 
Enter this ID into the Shop page “Find Vehicle” search field as a shortcut to search for the following - Production Date: July 1971 to September 1974, Make and Model: HOLDEN H SERIES, Series: 4.2, Engine: 253 cu.in Red.