Cruising with a solid roller cam

[72BBSwinger]

Alot of it depends on how the rollers are oiled and whether or not they have needles. Isky solid bearing lifters are some of the best for this type of application. I look at my 6.1 Hemi factory hydraulic rollers and they use .700 diameter wheels. I know there are a few out there with .810 and I think .840. You are limited to lifter bore diameter on how big of wheel. Bigger wheels are better because they spin alot slower at a given rpm which also lessens there oildemand and cooling requirements.