TA offers stock replacement and stock modified (stroker) crankshafts for Buick applications. TA replacement crankshafts come in kit form with bearings and assembly lube or crankshaft alone. TA’s Custom crankshaft is a replacement crank that is ground to exact specifications to allow additional oil clearance for performance applications. TA’s Stroker crankshaft most commonly used with our 494 c.i.d. packages, starts as a stock crank and then is offset ground to provide a 4.150” stroke and uses a 2.000” crank pin diameter. The TA Replacement, TA Custom and TA Stroker cranks are all based on original cores that have been magnafluxed and checked for straightness these cranks also include chamfered oil holes and micropolishing. A $250 core charge applies, which is refundable when a usable crankshaft is returned.