Valve Damage and Questions

[Prozon]

So the other day I was driving down the road and I heard a sound getting louder and louder coming from my head. I was not sure what it was, so I shut it down and got it towed back to my shop. I figured the timing jumped a tooth, but it would seem that the timing was fine.

From what I can tell I have valve damage. One of my intake valves seems to be.. bent or something? I haven't taken the head off yet so it's hard to say.

So my questions:

1.) How the hell do I have valve damage with 1,100 miles on the engine?

2.) Will a B18A1 head's valve fit a B18B1? I planned to just pull the valve from my old head.

 

[mirrorimg]

Yes the intake and exhaust valves are the same between the two heads.

It may just be that you need to readjust your valve lash. I dont see any way, unless you sucked up a big rock or rev'ed it to the moon (and you had valve float), to bend a valve.

 

[Prozon]

Well I've revved it high a few times, but I was driving a steady 50mph or so when it started making noise.
Should I take the head off or should I just try adjusting the valve lash?