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To lap valves or not? this is the question...

1834 Views 6 Replies 5 Participants Last post by  pdvanocudadave
I am rebuilding my 454. I just got the heads back from the machine shop where I had the seats ground. I have brand new valves for it. Springs will remain stock. Cam is only a step up from stock (Edelbrock 2162 with matched intake manifold).
My question is - is it worth lapping the valves? I have searched here in the forums and cant seem to find a definitive answer concerning new valves.
I know how to lap them having done it a few times over the years, just wondering if its even necessary given the valves are new and the machine shop done by a man I trust completely.
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I would just to make sure everything will seal properly.

the machine shop done by a man I trust completely.
Then there should be no ?'s ??? :noway: :thumbsup:
It can't hurt, but if your willing to put in the extra work, to give you a peace of mind, then I would say have at it. It just seem a waste of time (if you trust the machine shop) to tear the head down keep track of all the parts, re-clean the heads and put them all back togother again.

Is all I'm saying
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