Roller Rockers 1.5 vs 1.6

Peak valve lift has nothing to do with valve to piston clearance.

Where is the piston when the valve is at full lift?

You’re missing the point completely

I’ll help the thought process.......
The xe268 cam has an lsa of 110.
Let’s say you install it at 106.

Where are the crank/pistons when the valve is at full lift?

Ummm.... In the Motor... :poke: :lol:

You my friend are talking chinese to me right now. I would love to know the real answer to that but really I have no idea what the answer is and I have no idea how to check it. Hell I have no idea what the tools are to check it either...