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Crankshaft, Standard journals, 1.250". FULLY COUNTERBALANCED. Cast from spheroidal graphite iron which has a tensile strength of approx. 1-1/2 times higher than the Ford steel crankshaft. This alloy will naturally dampen vibrations and will accept huge torsional loads. The crankshaft has been heat treated and dynamically balanced for longer bearing life. Four inch stoke, same as original. Designed with counterweights to ensure smooth engine operation. Made in New Zealand