Thread: Identifying Piston Rings

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Pistons are Wiseco forged flat tops.

Ring pack is 1/16”, 1/16”, 3/16”

The rings are unique to me as follows

Ring installed in top, I’m not going to call it the top ring as I don’t know for certain if it was installed correctly, was installed with an inner bevel up, a dot installed up, and it has a moly face sandwiched between a thin layer of iron at the top and bottom of the face.

Ring installed in second has no dot. Inner bevel was installed up. The moly face starts after a thin ring of iron and extends to the bottom of the ring face.

This is a zoomed in picture of the moly faces as installed on the piston