The vintage large journal 327 FORGED crankshaft #4672 .010 under is a rare and highly sought-after piece for Chevrolet enthusiasts. Made of forged steel, this vintage part is sure to add strength and reliability to any engine building project. With quality construction, this crankshaft is a rare and valuable find. I was going to build a large inch short stroke screamer myself, but just can’t find the time.