Here are some interesting figures on the pistons. The original (used ) GTS
pistons measured in at 75.39mm pretty much across the board (supposed to be
75.5mm when they're new).  2 weighed in at 259gr & 2 weighed in at 260gr
complete with wrist pin , clips & rings. The max  GTS OEM oversize of .5mm
measured in at 76mm & weighed in at 267gr. The JE 1.5mm oversize measured in
at 77mm & weighed in at 267gr. Along with the higher dome the JE pistons
also have a bigger oil ring.  Peter Piazza

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