What Is Harley Stage 4

The Stage 4 117 makes less power than a stock 114 up until 3000rpm when it starts to take off.

What is harley stage 4. The cam in the stage 3 kit is a lower duration cam intended for more midrange where the stage for kit cam is intended for more higher rpm power. In many cases it would include a larger throttle body injectors depending on the specific model. Additional supportive mods would be required such as clutch and other upgrades.

Make more power than the Stage 4 up to 4000 rpm. This kit makes 105-110 hp and 110-115 ft lbs on a consistent basis straight out of the box without a great exhaust. It comes with forged high compression pistons.

It comes with the cnc ported factory heads with larger valves and bee hive springs and they flow much better than stock. Shifting at 5000-5250 is probably the sweet spot in an all out sprint. Screamin Eagle components are the key to greater acceleration increased passing muscle more of that rip.

Max flow design for big displacement engines with large airflow demand. It includes headwork and more cam than a Stage 3. New cams - Harley Davidson Community HTH Randall.

The 114 Torque Cam and 117 Stage 3. Stage 3 cam being the 498 model and stage 4 being 515 model. This Stage IV Kit was developed to deliver maximum horsepower from the Milwaukee-Eight engine - all the way to the redline.

A stage one kit is basic air intake and exhaust all the way up to stage 4 which will be a large project such as air intake. All of the gaines are in the upper end of the powerband. But higher number stage kits are well beyond just getting a new cam.