Part 2-Callies Magnum crankshaft. Part number GEQ-62J-MP. Component Observations

Yes these crankshafts are expensive. But from my previous experience they are superior to the $900-$1000 crankshafts on the market. The heat treatment hardened layer is thicker/deeper, the journal drilling to lighten, and the final grinding to size is top notch. Nice oil hole blending too, for a production part.

My measurements showed no journal taper or out-of-round. To the best of my ability, these are the journal diameters measured at 65 degrees F. The measurements might not be perfectly accurate to 0.0001”; but I tried, including checking the micrometer against the mic standards at same temperature.

Main#1 _ 2.7492 __ Rod#1-2 _ 2.1992
Main#2 _ 2.7492 __ Rod#3-4 _ 2.1992
Main#3 _ 2.7492 __ Rod#5-6 _ 2.1992
Main#4 _ 2.7492 __ Rod#7-8 _ 2.1992
Main#5 _ 2.7491

The rod journal widths are roughly 2.005” I expect the clearance between rods to be good at about 0.021”. Actual measurement will be during assembly.
My crankshaft is 69 lbs before balancing. The counterweights are 3.79” radius (7.58” dia). The front and rear are 1.23” wide, inners are 0.78” wide.
Callies must think these are good for blower applications, they have two keyways to transmit lots of power (to a blower belt).