Description Signature Series Big Block Chevy Crankshafts The SignatureSeries Crankshaft is createdfromnon-twist 4340 steel, itcomes completely profiled and detailed to our racing specs. TheSignature Series Crankshaft hasproven to withstand applications well over 1500 horsepower. Making itthe strongest crankshaft you willfind for your engine.Many design features such asmicro polished journals, gun frilled mains lightened rod journals,and windage reducing counterweight profile making the Signature Seriesthe best choice fore serious racers. All rod journals are frilled witheither a 7/8″ or 3/4″ lightening hole to reduce theinertia weight of the crankshaft All journal radii are ground to.140″; roundness of each journal is .0001″ or less Overall stroke is held to /-.001″ Pulsed plasma nitride treated forincreased strength and durability Micro polished journals Proven to withstand over 1500 horsepower applications
