Street 450 Clutch Kit1965-1972 Ford 390/427/428/429/460Pressure Plate Style: LeverDisc Diameter: 11"Input Shaft Diameter: 1-1/8"Input Spline: 10 HAYS / MR GASKET 91-2008 Features:The Street 450 single disc kit is an excellent upgrade from your stock clutch and designed handle mildly modified engines up to 450 horsepower. It is a great clutch where drivability is the most important factor. Our clutch features 30 greater clamping force than a stock clutch allowing you to put more power to the ground and top quality disc material allows for smooth, no-chatter engagement. Each kit includes pressure plate, clutch disc, throwout bearing, alignment tool, and instructions.Great drivability for power levels up to 450 horsepowerSmooth, chatter-free.