Mixed up valves

[/6 Matt]

Kind of more of a general engine building question but still slant six related.

So I've been doing some mild portwork on a head for my slant six that's gonna go in the Dart soon. I was very prudent in keeping the valves in order and labeled as I disassembled the cylinder head and did the old school trick where you poke holes through a box and place them in it. I even made sure to put the box in the only place I could think of were kids, cats and wives wouldn't disturb it and.... my wife still managed to accidentally knock down the box and I have two intake valves that fell out with no clue which one goes in which cylinder.

So my question is now what? Do I just put them back in the head and lap them? Do i buy new valves and lap them in? Do i get a valve job? The head doesn't really need a valve job.

 

[KosmicKuda]

Did you take some before pictures? Maybe there's some distinguishing feature on one or the other that will identify it. I write numbers on my valve faces with a Sharpie just in case.

But....I wouldn't lose any sleep over it.

Are you going to do a valve job? Are you going to at least lap the valves?

When I completely rebuilt my 225, I had the head redone by my old school machinist including hardened exhaust seats. When I got it back I sat there looking at it on the bench and just couldn't bring myself to throwing it on the block untouched. So I disassembled it and did some pocket porting and gasket matching. Think I spent about 10 hrs on it.

 

[toolmanmike]

You should probably lap them in anyway. Doing port work and not do a valve job? Not the way I would do it.

 

[RustyRatRod]

Just lap them in. I would do them all. That way, not only will you assure a good seat in the two that got knocked out and on the rest as well. They probably need refreshing anyway.

 

[/6 Matt]

Sadly no, I didn't take before photos as I didn't anticipate a need for it. This head has already been rebuilt before by someone else and never ran so as long as I can finish the job without nicking a valve seat I dont plan on getting a valve job.

Thanks for the advice guys! I cant wait to get this motor together and in the car!

 

[Killer6]

1) Sharpie, they're not expensive, lol!
2) Without seeing the condition, it's hard to give the best advise, but My opinion is replace the valves & lap them in if there are no/minuscule pits in the seats.
3) If You're bothering with port-work, there is something to be gained from a quality valve job performance-wise, just sayin'!