Poppet Valve

My poppet valve plate was corroded and would not seal. Found one at a bone yard today. The guide/stem, whatever you want to call it, is taller on the new one than on the old one. Part number is the same, except the original has C1 after it. Part number 65664. Will the one from the bone yard work?

http://i1067.photobucket.com/albums/...psbhq88d00.jpg

Should work fine as long as it doesn't interfere with anything?

Thanks for the reply. Installed it yesterday.