Re: Henry's 55 Constellation

Posted by PackardV8 On 2011/2/18 10:40:04

There is nothing wrong with knurling guides. There ARE pros and cons about knurling but with positive valve seals they should be just fine.

I looked at the pic with the hardened valve seat and thus at the valve end of the guide. It looks a bit thin walled to me to be an insert guide. Looks like maybe the original cast hole was just champfered (good idea) or maybe overbored 1/8" or so???? Common practice of better head work.