the biggest. And typical machining prices outside of then having to go buy the valves and assemble yourself.

Also does anyone know how much splaying our 2 bolt mains to 4 usually costs???

 

Biggest valves you'll get to "properly" fit is going to be a 2.00/1.56. The 2.02 won't seat right and will need to be backcut some. It doesn't really hurt anything, but you won't see much of a gain if any by going 2.02.

The Canfield LT1 heads (rare now) can go as big as a 2.08.

Machining?? As is porting or what?

 

I've got 2.02" intake valves but I'm not sure what the shop did or anything.