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 - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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