[SuperDuty421]

Crower Severe Duty HIPPO lifters with solid bushing conversion......can these be run in an engine equipped with lifter bore oil restrictors without issues?

Could there be potential issues getting oil to those bushed lifter wheels?

 

[Ace0406]

To make sure they live I would not run restrictors! Never!

 

[cstraub]

Morel says absolutely NO Restrictors with bushing lifters