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Z persons,

I recently grabbed myself an F54 block for my 73.

Stock bore is 86 mm, and I want to open to 88 or 89mm.

Don't need forged pistons, this a NA, street car, occasional autocross.

Doesn't seem like there are too many piston makers out there.

Any info would be greatly appreciated.


joe in Racine WI

Restomod: 73 240z, megasquirt seq FI and COP, coilovers

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