I remember when the Motion emblems first came out , Motion had sent out a flier out to its members on upcoming new performance items.It stated the Motion emblems had come in (I think they were $2.50 or $5.00 at the time) and under the photo of the Motion emblem it said it had to be trimmed to fit on the Motion valve cover. At the time, I wasn't interested in triming the emblem. Now ,I don't remember when they fixed the size of the Motion emblem., but the ones I finally picked up fit in the space on the Motion finned valve cover .......