Usage:
3406, 3406B, 3406C, 3406E, Or 3408 Truck Engines
Reference: Truck Engine News, February 1995, Page 4, "New Inlet And Exhaust Valves Have Thinner Heads". Truck Engine News, June 1994, Page 1, "New Intake And Exhaust Valves Used".
Check the Engine Specifications Manual to see if the correct valve projection specification is included. The valve projection specification is the dimension from the face of the closed valve to the machined surface of the cylinder head. Chart A identifies the valve projection specification for new components for 3406, 3406B, 3406C, and 3408 Truck Engines. Chart B identifies the valve projection specification for new components for 3406E Truck Engines. Chart C identifies the valve projection specification for reconditioned components 3406, 3406B, 3406C, and 3408 Truck Engines. Chart D identifies the valve projection specification for reconditioned components 3406E Truck Engines.
The following is a list of 3406, 3406B, 3406C, and 3408 Truck Engines Intake Valves in order of their introduction: 4N-5654, 1W-3859, 2W-2622, 108-5902, 115-2368.
The following is a list 3406, 3406B, 3406C, and 3408 Truck Engines of Exhaust Valves in order of their introduction: 4N-5653, 7N-0940, 7N-1630, 7N-2271, 7N-4580, 1W-3860, 106-1111, 115-2367.
The following is a list of 3406E Truck Engines Intake Valves in order of their introduction: 103-6304, 108-5910.
The following is a list of 3406E Truck Engines Exhaust Valves in order of their introduction: 6I-1390, 108-5911.