McLeod 6404807 Original Street Twin Clutch Kit Steel Flywheel LS-X 6-Bolt 168T 1-1/8x26 Spline

The McLeod Original Street Twin is a complete twin-disc clutch and billet steel flywheel kit engineered for high-horsepower GM LS-X applications. Rated to handle up to 1,200 horsepower, this system was developed to meet the demands of street-driven vehicles running power adders such as nitrous oxide, superchargers, turbochargers, or large-displacement naturally aspirated engines — all while maintaining everyday driveability.

This kit is configured for GM LS-X engines with a 6-bolt crankshaft flange, featuring a 168-tooth flywheel, 0-balance specification, and a 1-1/8-inch, 26-spline input shaft. The included billet steel flywheel is pre-balanced and matched to the clutch assembly, simplifying installation and eliminating the need to source a separate flywheel.

Kit Includes:

• Twin-disc pressure plate assembly
• Two ceramic friction discs (10.5-inch / 267mm diameter, puck style)
• Billet steel flywheel — 168-tooth, 6-bolt, 0-balance
• Floater plate
• Alignment tool
• Pilot bushing

Key Specifications:

• Horsepower rating: Up to 1,200 hp (organic disc configuration); up to 1,500 hp with ceramic disc upgrade
• Disc diameter: 10.5 inches (267mm)
• Disc quantity: 2
• Disc material: Ceramic
• Disc style: Puck
• Flywheel material: Billet steel
• Flywheel tooth count: 168
• Crankshaft bolt pattern: 6-bolt
• Balance: 0 (neutral balance)
• Input shaft diameter: 1-1/8 inch (1.125 in.)
• Input shaft spline count: 26

McLeod pre-balances each Street Twin kit to its specific application and includes the correct alignment tool for a precise installation. The ceramic friction discs deliver firm, confident engagement suited to high-output street and street/strip use. Part number 6404807 — McLeod Racing, the original innovator in twin-disc clutch technology.