Here is 4 ONLY used Del West titanium intake valves. They are 5/16" stem, 2.180 head and 5.440 long. They weigh about 75 grams. They are the square groove type.
2 Used 11/32 X 2.355 X 5.705 Titanium Intake Valve MANLEY DEL WEST
2 Used 11/32 X 1.910 X 6.530 Titanium Intake Exhaust MANLEY DEL WEST
(16) Used NASCAR Hendrick Motorsports 1.230 Del West Retainers #55551 R07
1 Used 11/32 X 2.020 X 5.040 Titanium Intake Valve MANLEY DEL WEST
1 Used 11/32 X 2.150 X 5.445 Titanium Intake Valve MANLEY DEL WEST NASCAR
6 Del West 11/32" Titanium Intake Valves 4.930" Long Flat Groove