Tilton ST-246 Twin-Disc Clutch/Flywheel Assembly | Mopar Hemi Gen 3 | GM T56 8-Bolt | 850 lb-ft

Key Features

• Rated at 850 lb-ft of torque with sprung-hub organic discs for smooth street engagement
• Engineered for Mopar Gen 3 Hemi engines (5.7L, 6.1L, 6.2L, 6.4L) paired with GM-pattern TREMEC T56 Magnum 6-speeds
• 246mm (9.7 in.) twin-disc design doubles clutch surface area versus single-disc assemblies
• Billet chromoly steel flywheel with precision register for optimal clutch/flywheel balance
• Precision-machined aluminum clutch cover delivers higher strength, stiffness, and balance than stamped steel OE-style covers
• High-mass pressure plate and floater plate machined from Tilton's proprietary racing materials for superior heat capacity and warp resistance
• Heavy-duty straps attach plates to cover, minimizing gear noise and ensuring clean clutch release
• Sprung center hubs dampen engine vibrations and reduce gearbox noise for true street drivability
• 1-1/8 in. x 26 spline disc hub matches GM T56 Magnum input shaft
• 8-bolt crankshaft pattern with 130-tooth ring gear
• Zero-balance flywheel for internally balanced Gen 3 Hemi applications
• Compatible with hydraulic release systems

Description

Swapping a modern Gen 3 Hemi into a classic Mopar with a GM-pattern T56 Magnum demands a clutch that can handle serious torque without sacrificing street manners. The Tilton ST-246 twin-disc clutch and flywheel assembly solves that problem with a purpose-built design rated at 850 lb-ft. The twin-disc configuration doubles the total clutch surface area compared to a single-disc setup, which means you get the holding power of a racing clutch with the pedal effort and engagement feel of a high-quality street unit.

Unlike many "performance clutches" that simply add a floater plate to a stamped steel OE-type pressure plate, the ST-246 was engineered from the ground up as a true twin-disc system. The precision-machined aluminum cover shares technology with Tilton's championship-winning OT-Series racing clutches, delivering far greater strength, stiffness, and dynamic balance than any stamped steel design. The high-mass pressure plate and floater plate are machined from the same proprietary materials used in Tilton's racing clutches, providing exceptional heat capacity and resisting the warpage that plagues lesser units under hard use.

The organic friction discs feature sprung center hubs that dampen engine vibrations and reduce gearbox noise, delivering the kind of smooth engagement you can live with in daily driving and stop-and-go traffic. Heavy-duty straps connect the pressure plate and floater to the cover, minimizing the gear clatter common with twin-disc setups while ensuring a clean, positive release every time. The floater plate is twice the thickness of most competing twin-disc clutches, further reducing noise and improving heat dissipation during aggressive use.

This kit is specifically configured for Gen 3 Hemi engines (including 5.7L, 6.1L, 6.2L Hellcat, and 6.4L) using the 8-bolt crankshaft pattern and mated to GM-pattern TREMEC T56 Magnum transmissions. The billet chromoly flywheel includes a 130-tooth ring gear, zero-balance configuration, and a precision register that locates the clutch assembly for optimal balance--no loose-fitting bolts and dowels like stamped steel units. The 1-1/8 in. x 26 spline disc hub matches the GM T56 Magnum's input shaft. Designed for hydraulic clutch release systems. Does not include pilot bearing or throwout bearing. Made in the USA.

Kit Includes

• Billet chromoly steel flywheel with 130-tooth ring gear and precision clutch register (zero-balance)
• Precision-machined aluminum clutch cover
• High-mass pressure plate (proprietary racing materials)
• Heavy-duty strapped steel floater plate (double-thickness design)
• Two 246mm organic clutch discs with sprung center hubs (1-1/8 in. x 26 spline)
• Clutch alignment tool
• Flywheel bolts and clutch mounting hardware
• Installation instructions

Note: Pilot bearing and throwout bearing not included. For hydraulic release bearing applications, the Tilton 6000-Series is recommended.