Crankshaft Hub4-3/8 in ODAluminum
Designed specifically for circle track use on internally balanced small block Chevys. Allstar Performance aluminum crank hubs are significantly lighter than harmonic balancers and dramatically reduces rotating weight for quicker acceleration off the turn. Hub has 4-3/8 inch diameter with timing marks at 0 degree and from 30-42 degrees and three 3/8-16 inch accessory threads. Weighs just one pound.
Brand: Allstar, Model: ALL90030