[PrimeMvr]

I ordered valve guides 930-104-321-50-M105 from our host for my 83 SC 3.0. I tested several before installation and the valve stems fit perfectly. I machined off a couple of hundredths from the OD, cooled the guides, heated the heads and they tapped in with what felt like just the right interference fit.

However, the valves won't fit now that they are in the heads. They feel about like I could tap them in. I know better, but use that analogy as a reference. The heads, guides and valves have been at the same temp for two weeks since installation of the guides.

Did I order the wrong ones, or is it normal to have to ream them after installation? If so, what's the technique? I hope I don't have to take them out and start over!

Thanks folks,
Steve