Thanks for the follow up. I may call Larry tomorrow as he is closed today. I am still looking at the fueling lifters as well as those are $80 cheaper and have good reviews, and good customer service, as well. I use their ARP head bolts and they are a thing of beauty.

 

I wanted to give some feedback on these lifters from Larry that may give some insight into the issue you were experiencing. I ordered a set from Larry and got them in a few days ago. I have a tappet tester tool which allows you to pump them up on the bench. I tested all my old S&S lifters and one was bad the other three were good. When I went to test the Hylift lifters from Larry I could not get them to pump up and once I did they leaked down too fast. My S&S lifters were leaking down in about 6 minutes, the Hylifts were leaking down in under 4. A good lifter should leak down in 5 to 8 minutes. On the last lifter I pulled the whole lifter apart and found that there is oil already in the lifter under the main plunger but it is very lightweight oil (doesn't look like motor oil). I drained this oil and put in regular motor oil and reassembled and it pumped up right away and leaked down in about 6 minutes like the old lifters did. It seems the oil that the lifter ships with may keep the lifter from pumping up right away. Just a theory anyway as that seemed to be the case for me yesterday. I thought all the lifters were bad or something initially as that was how they were acting on the tester, but once that lightweight oil was removed they acted normally.

 

Thanks for the response. It's good to know it wasn't just me that had the issue. It would explain my experience perfectly, once the shipping oil washed out they operated perfectly. Good info for those opting for his lifters in the future.