NITTO 4340 Billet Steel crankshafts are manufactured
from high quality true billet round bar stock. Most other
aftermarket crankshafts are manufactured using cast forged
material, which is a much cheaper manufacturing process
and hence carry a cheaper price tag but their performance,
strength and horsepower capabilities are significantly compromised
compared to that of a true billet crankshaft. An engine
with a 4340 billet steel crankshaft will rev faster and
cleaner due to the different harmonics produced from the
high grade material.