Roller cam bearings

[nhramnl]

Originally Posted by Mark Ugrich

Are there any real advantages to using a roller vs. a Babbitt bearing? I’ve never had any personal experience using them.

Really interesting question. A person's intuitive reaction would be "of course, look at things like roller lifters and rockers", but I'll bet there aren't many engine builders who have actually done an A-B-A comparison of cam bearings.