You need to source a set of nos or nors hydraulic lifters that are at least 20 years old. they turn up on ebay and hemmings may also be a good source. They new lifters seem to have a problem staying pumped up and I have hard some talk about the new lifters taking out cam lobes on break in or shortly after break in. Try calling schneider cams in San diego and see if they will regrind your stock cam. I just heard that they are now out of cam cores (they ground 2 performance cams for me and another fellow I know just had a cam done for him and they told him his cam was ground on their last blank) but maybe they will try to get you one. If you dont have a stock core, post in the swap meet, it is the same core as a 235 and I would thing there should be plenty of meat for a stock 261 hyd. regrind.
