This is the real deal with cast factory cranks. A Chrysler factory crank LA motor will take 600HP in a light weight car 2800lbs. What is different between cast and forged(othet than metalugy) is the stress cyclces that the metal can endure. A 360 cast crank with 70,000+ miles whether light or hard use has reached a point wear the metal memory starts getting alzheimers. When the metal structure starts to move with the stress of racing it forgets its original place and starts moving away from its as cast structure. Once that happens the greater the chances of fracture of the metal structure and eventual failure. All forged china cranks whether scat,eagle,ohio,callies come from the same factory. When the china economy becomes stressed, the chineses look for a cheaper way out. This means a cheaper(quality) product.Products that were manufactued 2010,2011,? many fit this proverb. A real Callies crank is $1500.00+. Can it fail? Sure but the chances are slim. Look on ebay for a race W7 or W9 motor. Many of them are only test laps,and they with run low 9's as is. With cam and carb change high 8's. Someone else did all the engineering and at 15K not a bad deal, respectively.