Measuring Aircooled VW Valves

Long story short, I've had enough grief from the worn-out heads I inherited when I bought my my Speedster. I'm going to replace them with new. I'm happy with the performance of my 1776, when it's running, so I want to purchase a similar setup. I need to know how valves are measured to determine which heads are installed. Is the diameter determined by reading the ID of the seat, the OD of the valve, or something else?

3/23/193:23 PM

Original Post

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