Solid roller lifters
I think joe blow racing that is throwing parts together off the shelf will likely benefit from a bushed lifter because unless you’re lucky and catch a weird lash adjustment or the needles fall through the engine we don’t have the r&d budget to spintron or dyno test endlessly to get the last bit that makes a needle bearing better than a bushing.
Interesting to read about the advantages though I have to say I’ve never seen a legitimate case for needle bearings anywhere except the rocker arm tip, and I dismissed those thinking that a bushing would be better.
As said when you pick a lobe you'd ask that manufacturer what's the recommended open spring pressure, seat pressure....etc. they being someone like comp cam may have a spring but you can use other springs knowing the Pressures needed from the recommendation from the cam manufacturer.
Inverse cams and Billy GodBold's Low Shock Technology Solid Roller lobes.
Mike Jones talks about them also. Who? 832....🤣😂
https://www.yellowbullet.com/threads.../post-73342503








