They have been used and are leaking in the rear passenger water connection. Also didn't seal the nearby intake port so leaked coolant got into the cylinder and caused problems while I broke in the new cam. It took about 10 minutes so I didn't even break the camera and I'll probably have to throw it and the lifters away. Bought another set to try again. I've had really bad luck with Fel-Pro pads over the past few years, but I've been using their pads since the 80's. I will update this review as I do more testing with the latest set.
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