Yes, C1/2/3/4 must be 1.33uF because those are treble peak point determining parts of filter. Resistors (R1/2/3/4) are used to apply amount of filtering (-10dB for example). L1/2/3/4 had something to do with feedback circuit, don`t remember anymore exactly but you do not need to change those.
HD-662F filter values are very different and NOT close to HD-681F MK3. I understand that you have no idea about electronics but please start reading, I gave all the info you need few posts back.