Feuling® quick change camshaft installation kits for twin cam® engines include timken® camplate roller bearings, koyo® torrington® full roller needle inner cam bearings, 12 point arp® camshaft and crankshaft bolts with hardened washers and camshaft retaining clip.Gaskets include cam cover, lifter blocks, exhaust, pushrod tube and camplate o-rings, arp fastener moly paste, and loctite thread compound.Feuling® quick change + top end kits also include rocker box cover and breather assembly gaskets, breather elements, breather umbrella valves and rocker support o-rings.