RocketV8

I just got my #2 heads back from the cylinder head shop. The valves are 2.07/1.71 with a valve/throat ratio of 88.5%. This made the bottom 60 degree cut wide with a sharp edge at the short turn.
Should I blend the bottom cut into the throat? Or just break the edge?
Should I do it all the way around or just the part marked in yellow?
Or just leave it?

cutlassefi

Break the edge at least. These are going on a 330?

RocketV8

Yes, but 340 cid (4" bore). It will have your cam in it.

/ Karl-Anders
Mora, Sweden

cutlassefi

Gotcha. Not sure I would’ve put such a large exhaust valve in it though.
Best of luck in your project moving forward.

RocketV8

Yeah, I know it is an unnecessarily big exhaust valve. I bought them as a package deal years ago, so it is what it is...
Thanks!