Old motor had some miles under her belt ..
Valve guides was past max wear limit ..
Valve stems also had wear showing ..

Game plan was to install new guides and valves ...

But ... The good Folks at KPMI has a better solution ..
They offer Fat Stems for the 06-up Twinkies ..

From the .2756" to .282" allows to keep the old guides in play for many more years before replacement is necessary ..

Now ain't that mighty nice of them Folks ... ??