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So Chris, what do you think of the O ring / widefire setup in general?

Chris White

Its ‘old school’ but it does work. My only problem is that you are locked into the concept once you modify the head or block. I have had a couple of folks that wanted to go from a 100 to a 104 bore and I had to tell them that the O ringed head would not work with the larger bore.

The Oring fix is the best way to seal up an old block / head that is not perfectly flat.

One of the nice features of the cometic is that you can reuse it, it makes taking the head off to have a look inside a little less painful!