Unlike other roller pilot bearings, this high speed bearing is designed as a direct replacement in all Chevrolet V8’s and 90° V6’s (also fits 1976 and later V6 Buick) Requires no modification to either crank or input shafts Eliminates premature bearing failure and insures clean clutch release by maintaining true alignment of clutch disc to flywheel Packed with high temperature grease for proper lubrication under extreme high heat conditions Suitable for all high performance applications including drag, oval track/road race and street 1.093" O.D. x .591" I.D. x .72" Depth One per package