[ Engines for land vehicles and component parts for such engines; ] engine crankshaft vibration dampers [ ; components for land vehicle engines, namely, camshafts, adjustable timing indicators, timing covers, gear drives, drive pulleys and drive pulley kits, ignition distributors, ignition coils, ignition leads, engine oil coolers, adjustable rocker kits, manifolds, stud girdles and stud girdle nuts, oil pans, water pumps, valve covers, valve cover breathers, hold down tabs and wing nuts, air cleaner assemblies and accessories, thermatic and flex fans, superchargers and parts thereof, turbo chargers and parts, boost gauges, linkage kits, engine oil bolt sets, and fly wheels; gear boxes for use with land vehicle engines; land vehicle transmissions and transmission cooler kits; and clutch parts, namely, pressure plates and clutch disks for land vehicles ]