The cups I bought were Wagner parts so any parts store should be able to get them, 1 1/4 front 1 3/8 rear. A question for you Denny how do you adoize the aluminum pistons. I have bored and honed huck cylinders before and made my own pistons with good results. I bored the cylinders with a boring head and a home made angle plate and a finish hone. Worked on them for two weekends but only spent $9, guess I put some 9 year old in China out of a job.
