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Originally Posted by flashbang756

Ahh ok.

I wonder if he knew he ordered those or if that's just what his distributor sent and he didn't know it? Makes me wonder what rings I have.

How do you know? Does it have an affect on combustion? Or excessive blow-by or something?

my machinist noticed it when reviewing the part number when the engine was being built. Also, that is when my car started having boost issues. Since they were low tension, the boost was collapsing the rings and going past the rings causing excessive pressure in the crankcase. This in turn was forcing more oil and oil fumes out the PCV system and going into the intake track. I killed 3 sets of head gaskets due to this over the course of a year. Unfortunately it took me over a year to figure this out.