[daz2206]

thanks for your help, (i didnt realise caswell sold them), the parts i would be doing would not fit in the round type as most of the parts are between 2ft and 2ft 6" long (rocker covers, cam belt covers, mainfolds etc...) so i would be looking at a tub type around 3 ft x 1 ft x 1ft = 3 cubic ft (i think lol), the media seems to be a reasonable price if it can be re-used so that shouldnt be a problem, the run times of each media seems ok,
so now i need to know roughly how much media is needed for a 3 cubic feet tub (does 65 lb's sound about right ?) and is there anywhere i can find close up pictures of work done by vibratory polishers to get an idea of the finish i can expect, also will they distort mating surfaces ? would the mating surface need skimming afterwards (for example where the manifold fits to the engine block) or would it take an even amount off all over ?.