Cutting valve reliefs in early T1 pistons

[Wizard]

I have set of this Clevite '85 small dish T1 2.2 pistons (9cc) that need valve reliefs cut for the V16 conversion. Just wondering thick enough for that deep cuts because I see valves edge so close to the head's deck.

I know info is 48 deg included for exhaust and intake valves but is this exactly valves seperation centered on the 90 degrees to the deck or slight offset from 90?

Devil is in the details and all that.

PS: Some older posts mentioned spacing the belt spockets out, was that spacing them out now not a need for that? This reason of spacing out is not clearly detailed.

Cheers, Wizard

[cj011]

any updates guys?