What Is Harley Stage 4

It isnt until 4500 RPM that the Stage 4 really comes to life pouring the power on until it redlines at 6500rpm.

What is harley stage 4. The Harley Stage 4 upgrade consists of ported heads and a high performance carburetor or throttle body. As the stage kits get higher in number the more parts and labor are involved. 200 Valves Step Lock Guides special valve seats 516 valve springs allow up to 750 of cam lift.

The larger valves are completely un-shrouded in the. The new Screamin Eagle Street Performance Stage 4 Kit 103 Cubic Inches PN 92500011 184995 from Harley-Davidson Genuine Motor Accessories produces the maximum horsepower output for a. 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.

Nobody says no to more torque and horsepower. So before you opt for one of our legendary Stage 1 2 or 3 Full House Harley upgrades be sure you know what it is you want when it comes to the performance of your Harley-Davidson. Only one air cleaner is available to fit.

By getting a Harley stage kit you dont have to spend a bunch of time researching and piecing things out. And for the sake of comparison and to better explain our menu of upgrade options and power gains expected it is worth noting that the most popular engine in the Harley range is the 96 Cube 1600 cc as. This Stage IV Kit was designed to deliver maximum horsepower all the way to the redline.

This Stage IV Kit was developed to deliver maximum horsepower from the Milwaukee-Eight engine - all the way to the redline. This would be a moderate compression big bore combination. Buy your Road King Kong raffle tickets here.

Here is the thread on this discussion and he even posted the dyno sheet for it after he was done. 100 of proceeds go to benefit the Forgotten Angels of Florida charity. The Sportster Stage 4 Kit requires additional parts and accessories that must be purchased to complete installation.