LA 360 drop in roller lifters

If you did the math or could measure the loads involve in the upper rpm ranges that these engines see, I bet you'd be surprised in the difference the roller diameter and can make. I'm not going to attempt the math, but I am betting it is not a linear relationship.

I'm sure it's not, but my point was, unless he's going for all out power and race and blah blah blah, he probably doesn't need the bigger rollers.

But then, I'm tainted I guess. I look at everything though budget glasses. If I don't really need something and cannot justify it, it doesn't make it on my project. It's a habit I wish I didn't have to have.