ive had my crankshaft ground on my cossie to .25 can you use the std thrust washers still?

 

I would alway carry out an end float check during build , just to make sure that they are the correct size , have known oversize thrusts to be fitted to a new engine , fit crank and use dti to make sure end float is within spec

 

The thrust part of the crank is not ground, but may be worn.
Always measure, if in doubt get new std size ones, as the tend to come slightly thicker than needed and you can then grind them down on a glass with grinding paste.
tabetha