Valve to piston clearance?

72Dart6pack said

Piston manufacturer usually states max valve lift. Go to there web site and look.

Click to expand...

Haven’t seen that in a spec for a piston. Not sure how they would know?

Specs for my pistons are here. 1 Set IC846.030/1 Set 3910BD8.030

I see valve relief depth and size... not max lift.