Are .40 over pistons too extreme?

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Jun 11, 2011 | 07:19 PM

#16

batty200

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I have run .080 overbore on a 4G63 and it had HG issues until I used the Fel-Pro HG. This was on a 1G 6bolt DSM though. There have been people using 88mm pistons which is 3mm or .120 overbore.

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