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Seeing as they are supposed to be the same for intake and exhaust, I was surprised that they looked different. Probably different production batches or something. I put the vanilla ones on cylinders 1-2 and the chocolate ones on cylinders 3-4. For science.
Wife's car provided required straw for installation.
Then I got this thing out of my garage.
...and I jammed it in my engine and hit it with a hammer. (not even joking)
Some times I hit things too hard.
And I replaced my stupid valve stem seals. Yay!
This was my least favorite thing. Its a fairly sizable divot near the middle of my lifter. The cam looks perfect. I'll see if I can get a pic with better lighting tomorrow. I suspect FOD, probably from garbage floating around inside the motor during breakin. I guess when you squeeze a piece of metal between a hardened shim and an even harder cam lobe, something is gonna give. The good news is that I can flip the shim and keep on keeping on. Aidandj recommended (and rightly so) that I should probably hit that face with a superfine diamond hone to knock down possible high spots, and I agree.