Hays Street 450 Conversion Clutch Kit

The Hays Street 450 Conversion Clutch Kit line is purpose-built for classic car, muscle car, and restomod builders who need a meaningful performance upgrade over factory clutch components without sacrificing the smooth, predictable feel required for everyday street driving. Engineered to handle stock and mildly modified engines producing up to 450 horsepower, the Street 450 series strikes the ideal balance between increased holding power and real-world drivability.

At the core of every Street 450 kit is an upgraded damper spring pressure plate that delivers up to 30% greater clamping force than a stock OE clutch — translating more power to the drivetrain while preserving a natural, stock-like pedal feel. The premium organic composite friction material provides smooth, chatter-free engagement well-suited to stop-and-go street use, while the steel-backed clutch disc construction bonds the friction surface to a rigid backing plate for superior heat dissipation and structural integrity at higher RPM. A heavy-duty hub spring assembly rounds out the disc design, increasing overall drivetrain load capacity.

Key Features:

• 450 HP Rated: Designed for stock and mildly modified engines, including those with headers, upgraded intake manifolds, or mild camshaft changes
• 30% More Clamping Force: Upgraded pressure plates deliver significantly greater holding power over factory OE clutches
• Premium Organic Composite Disc: Smooth, chatter-free engagement ideal for daily street driving
• Steel-Backed Friction Material: Bonded construction improves heat dissipation and provides excellent structural strength at higher RPM
• Heavy-Duty Hub Spring Assembly: Increases overall drivetrain load capacity and improves engagement feel
• Modern Transmission Swap Compatible: Select configurations designed to work with popular 5-speed and 6-speed manual transmission conversions
• Complete Kit Contents: Each kit includes pressure plate, clutch disc, release bearing, and alignment tool (unless otherwise noted)

Hays has been a cornerstone of American performance drivetrain manufacturing for decades. Whether replacing a worn factory unit or converting to a modern manual gearbox, the Street 450 Conversion line delivers proven, street-friendly performance with the durability to match — a trusted solution for builders who refuse to compromise between performance and daily driveability.