Maybe not much, but it does to me. When the originals were not concaved. Probably wouldn't notice the difference in compression, but if already loosing a little compression with a valve job I don't like loosing just a slight amount more with the valve head. IH ones are not that much higher but with none in stock at the dealer to look at, can't know if They are the same as originals or just the same as aftermarket.
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Today's Featured Article - Chores - by Frank Young. The ceaseless passing of time! It is at once our friend and our enemy. It measures our progress and it makes us old. Like most features of our life, few things are all good or all bad, and most such judgments depend on our own perspective or viewpoint. In our particular hobby, we enjoy the nostalgic return to the days of our youth as we recreate many of the scenes that took place on the family farm that served as the stage for the first few acts of the play that is our live
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