[millennium200]

Great! I just put a set in my 514 over the winter and am about ready to start the summer driving season. I pulled out my Crain lifters because they had over 14,000 miles on them which I thought was enough for one set of lifters. I also installed the Isky Endurance springs because the Comp Cams springs would only last about 7000 miles before the center springs would break. The Isky lifters are said to have the best oiling system on a solid roller, at least that is what they say. Please let me know what Isky says about your failure.