PERFECTION CLUTCH
More Information for PERFECTION CLUTCH HP641
{Alternate Inventory Numbers: HP64-1}
Continue Shopping
 
PERFECTION CLUTCH HP641  
$184.79
Price
$0.00
Core
+ Sold in packs of 1x1
Pack
$184.79
Total
PERFECTION CLUTCH HP641close
Part image
PERFECTION CLUTCH HP641 Specifications
Alignment Tool Included?Yes
Bolt QuantityNA
Bolts Included?No
Clutch Disc Diameter11.000 in
Clutch Disc Diameter279.40MM
Clutch Disc Spline Quantity10
Clutch MaterialKevlar
Clutch Disc TypeDampened
ContentsCover, Disc, Pilot Bearing/Bushing, Alignment Tool, Hydraulic Line Tool, Spline Lubricant
Flywheel Included?No
Grease Included?Yes
Input Shaft Diameter1.063 IN
Input Spline Quantity10
Installation Tool Included?Yes
Pilot Bushing Included?Yes
Pressure Plate TypeDiaphragm
Release Bearing Included?No
Sleeve Included?No
ZOOM Kevlar High Performance Disc Kit; Release Bearing Not Included - Service With Slave Cylinder
Perfection Clutch ZOOM High Performance Kevlar Disc Clutch kits are recommended for street/strip applications, towing, snow plowing, or off-roading. Matched components are engineered to perform together for maximum durability and performance.

Features:
  • Disc with dual-sided Kevlar friction surface provides maximum durability while maintaining smooth engagements
  • Designed to hold up over time against high RPM, huge loads, and high heat
  • Cover assembly is computer tested for clamp load, plate lift and finger height to ensure smooth, uniform operation

Organic vs. Kevlar vs. Ceramic Friction Disc - What Is The Difference?

The Friction Disc is a vital part of any clutch. It connects the pressure plate and flywheel, and is responsible for transferring engine power to the rest of the vehicle. Clutch Kits come with several different types of friction discs, and it is important to understand the pros and cons of each material:

Clutch Disc Material Smooth Engagement Holding Power
(Friction "Grab")
High Torque Capacity Lifespan Gentle To Flywheel
Organic
★★★ ★★ ★★★
Kevlar
★★★ ★★ ★★ ★★★ ★★★
Ceramic / Cerametallic
★★★ ★★★


Tips & Tools For The Job
  • Wear a Dust Mask to protect against hazardous clutch dust. You can also spray the clutch with water prior to removal to reduce the amount of airborne dust during disassembly.
  • Use a Flywheel Turner to hold the flywheel in place while removing and reinstalling the pressure plate bolts.
  • Apply Blue Threadlocker to flywheel bolts prior to installation to prevent backing out due to the high vibrations flywheels are subject to.
  • Use the provided lubricant to lightly lubricate the splines of the input shaft. Over lubricating the input shaft risks lubricant transfer to the clutch friction disc and can cause clutch slippage.
  • Be sure to install the new clutch friction disc in the correct direction. The disc will have a "Flywheel Side" label on one side.


Videos

Clutch Quick Start Installation Guide

Additional Resources

Clutch to Transmission Housing Interference
Firewall Flexing, Incomplete Clutch Release 1987-1988 Ford F-Series
Clutch Repair on Vehicles Equipped With a Concentric Slave Cylinder (CSC)
Flywheel Side Identification

PERFECTION CLUTCH Warranty Information:
Limited Lifetime