SCS Professional Series Quick Change Gear Set - 6 Spline - Set 616 - 4.11 Ratio 2.53 / 6.68 - 4.33 Ratio 2.66 / 7.04 21411407 and easily cuts with a

and easily cuts with a hot knife or a soldering iron with knife attachment

either high strength SG (nodular)iron or AUSI 1045 steel precision CNC machined for total accuracy

3" diameter carburetor flange

Small Block Chevy "Econo" pans include pan rail notches that will take up to a 4

we chose to pay attention to those finer details that set an aFe filter apart from the competition

SCS Professional Series Quick Change Gear Set - 6 Spline - Set 616 - 4.11 Ratio 2.53 / 6.68 - 4.33 Ratio 2.66 / 7.04 21411407 and easily cuts with aManufactured from 9310 aircraft alloy for maximum strength, 6 spline quick change gears are crown hobbed, broached for 6 spline shaft fit, and black oxide finished for corrosion protection. Gears undergo a five step heat treating process to deliver maximum durability. Since 1979, SCS Gearbox, Inc. has been listening to it's customers! When SCS Gearbox first started manufacturing, it was to meet the needs of tractor pullers to provide specialized