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The Spool 2JZ Stoker Crank is a true billet crankshaft machined from Billet 4340 core stock (not a cast forging blank that is final machined).
Each crank is machined from core stock 4340 on a CNC machine, then Nitrided and final ground.
With the increased cubic capacity from the stroker crank, increases of up to 50% in torque and low to mid-range power are achievable. Boost will come on earlier in the rev range and peak power will increase.
Crankshaft Specs:
Crankshaft Specs: