SM Head Modifications on a budget

Newbomb Turk said

Haaaayup. My heads don’t match match because I was just making the ST a skosh wider and there it was. That little blister you see when you know you are screwed.

So I had to grab another casting and start over.

If it’s not a W2 head I don’t even consider porting on them.

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Mine are still buried outside my shop. Now that I have the capabilities of using my seat machine to easily open up for bigger valves I should clean one up and open it up to a 2.08 valve size and apply some newer knowledge to my porting work and see what I can get out of a port. They were 300-305 with the (3/8) stem 2.02 valve. No never mind that’s a really stupid idea.