Well that’s the best I can do on this set of heads.

Garrett Ellison said
340/360, Easy

Okay, thanks!! I guess I’m used to seeing so many of them outfitted for 2.08 valves I just started assuming (I know, the MF’er of all F’ ups :realcrazy::BangHead:) that they came that way…

A 2.08 is the biggest single improvement you can do to the W2 and W5 heads.

If you use 5/16 stem valves and you keep the guides in good shape you can get a 2.100 valve in there, even with the 1.600 exhaust valve.

When I do my last set of W2’s I’m going to try and use a 1.500 exhaust so I can squeeze a 2.125 valve in there.