Od833 4speed in 64 valiant

Since the LA based 318 had not gone into production model year 64, it's safe for me to assume it came out of a 67 > car. In addition to the shopping list that 66fs gave you in post 18, it will be necessary to insure the crankshaft is machined for a pilot bushing. This step was performed at the factory for all engines destined for MT cars.
FWIW Dept: Using the 72 Parts Manual as a reference source, the 340 & 318 use the same bell housing & clutch disk. Although both pressure plates are for 10½" clutches, they are different for parts number purposes. I've cracked a couple of 318/904 combos open and found the machining for the pilot bushing done, but it's fairly rare. It's sort of like finding disk brake MC & prop valve on a drum brake car.