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#16
09-29-2025, 02:44 AM
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The lobe lift is what breaks lifter bores. Because more LL means a smaller base circle, with more of the lifter body hanging out of the bottom of lifter bore. That gives the lifter more leverage against the bore & they can break. An analogy is a wheelbarrow full of dirt. You cannot lift it, so you make the handles longer for more leverage.
Roller cam lobes have changed. A few years ago, 260 @ 050 duration with 0.400" lobe lift was big. Now, Comp has lobes that are 235 @ 050 & over 400 lobe lift, not lifter borer friendly... |
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