- Jan 9, 2012
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New in box Arias custom 4.00 std bore forged stroker pistons for use with a 3.40 crank and 5.40 rods (342ci) and tw heads. Dished pistons for forced induction s/c or turbo setup. Compression would be 9.2 with a 60cc TW head. Pins and locks included. $350 shipped (cost over $800). Can send pics if interested.