Hamilton 188/220

Zach, are there any issues with sinking the valves .030 on your head? Not sure if the seats are hardened or not or if this is even an issue.

I hope this isn't a stupid question, but I'm new to this stuff.
 
For the most part, cutting .030" will most likely not cut past the case depth on the induction hardened seats.

If you have good springs, run .040" as a minimum p-v clearance and you will be fine.
 
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