Quick 360 head question

[trebor75]

What would the valve stem diameter be on a stock 3769974 360 head and would the valve seat angle be 45?

Thanks!

 

[Locomotion]

What would the valve stem diameter be on a stock 3769974 360 head and would the valve seat angle be 45?

Thanks!

All of the LA heads have 3/8" stem valves.
I let my engine builder handle the valve job details, but I'm guessing that 45* is the "OEM" seat angle.

 

[brian6pac]

Here is a chart from a factory manual

 

[trebor75]

Perfect! Thanks guys