[1320racer]

have never, would never use comp roller lifters in my motors. Too many reports of their lifters failing over many, many years and for the same reason, ears spreading/axles walking, regardless whether, sportsman, endure-x. IMO and many other racers as well engine builders, Crower Severe Duty are the benchmark. I also don't believe in rebuilding lifters, they are a disposable component.