B20 crank = B18B crank...same thing with rods...they're identical. If you change pistons, youre going to need to change the rods...so they will come with ARP bolts. Any automotive machine shop should be able to balance the crank.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
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