[xb-60]

Last time I rebuilt an engine, it was a simple solid lifter setup with flat tappets. That was …hmm…a while ago. Things have changed with lifters since then.
So, my questions….
- Is it a no-brainer to go the roller tappet route, or are there circumstances where flat tappets are preferable? I know the cam lobe tip radius is larger on a roller cam, so maximum lift is maintained for longer. I assume cam lobe and lifter wear is less on a roller setup.
- What are the benefits of hydraulic lifters over solid lifters apart from maintenance and arguably noise? (I say ‘arguably’ because I like the noise).
- Conversely, what advantages do solid lifters have over hydraulic lifters.

I need an update to bring me into “C21”

Cheers,
Glen