I cannot for the life of me see how I can remove 9gm of material off this piston. I can see maybe a gm. So I think I am stuck with working the pins.
The other reason for posting the pic - note the ring gap positions. This is how they came out of the new cylinder. I guess it may be debatable whether to bother orienting them. The ones I pulled after 2 or 3 track sessions had the compression rings moving quite a bit - the gaps converging a bit like this one. The oil ring was still where I put it.
Regards
Alan 
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-)
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