Thinking about valves for my n/a Series II L36 project heads:
zzp (and others) sell stock-diameter SI stainless steel valves for the Series II 3800; about $80 for either intake set or exhaust set (so about $160 all around).
(Note: Up-sizing valves is completely out of the question budget-wise)
Pros: Compared to stock valves, these are one-piece, all stainless, undercut, swirl-polished.
Theoretically, this should make them stronger, better able to withstand/conduct heat, and have better low-lift flow (or so goes the marketing...)
Cons: Compared to stock valves, these valves cost money
So, are they worth it? Maybe just on the exhaust side?
A local machine shop claims they can undercut the stock valves for a reasonable cost...given our valves are two-piece friction-welded design (I think), I'm a bit wary of this idea; should I be wary?
Is this all overkill for a lightly modded n/a?