LA 360 drop in roller lifters

Bewy said

The larger 0.800" rollers were not extra $$. That is how they come. There are a couple of benefits with a bigger roller.
- more contact area at the lobe/roller interface, hopefully less wear
- bigger roller turns slower, so the roller bush makes less turns on it's shaft, reducing long term wear.

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And the bigger wheel allows more spring load. There is no reason to not use a bigger wheel. That’s why the GM guys pay to go to the .904 lifter rather than the junky .842’s they came with.

From BAM directly...an .842 lifter has its limits at about 300 pounds on the seat. A .904 lifter with needle bearings are good to 360-370 on the seat. The bronze bushed .904’s are good to 420 on the seat, and the steel bushed lifters are good to some unreal number I can’t remember. I want to say it was 460.

A bigger wheel is more durable. Every time.