Fitments
54-E77 Big Twin (NU) (average)
Part Description
JIMS, pinion gear 54-77. Green
Gear size over .105" pins: 1.4470-1.4465". Cam gear over .105" pins: 2.7685-2.769". Made from the finest American aerospace quality tool steel. Precision machined to exact tolerances with no compromises. Note: Cam gear fitment is essential to quiet valve train operation. Too loose of a fit will result in a clicking noise, sometimes confused with lifter noise. A too tight fit will produce a whining sound and premature wear. Sizes are as follows: 961300 Orange (biggest). 961301 Red. 961302 Blue (average). 961303 Green (average). Repl. 24010-54. 961304 White Repl. 24010-54. 961305 Brown. 961306 Yellow (smallest).
