What Is Harley Davidson Stage 4

Along with larger throttle body and injectors you will be needing more headwork than what you have done in stage 3.

What is harley davidson stage 4. The 114 Torque Cam and 117 Stage 3. For the highest power upgrade available well address the top end of your Harleys engine. This is the stage that really puts the cherry on top.

To start with The stage 4 kit does not come with the compressor heads. 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 exhaust larger pistons cam and more. 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.

Check out this new 107 to 128 HD stage 4 kit with Bassanni stainless exhaust. I would think with a stage 4 kit the 259E cams 101 higher compression pistions Polished and ported heads 58m throttle body high flow air cleaner fullsac DX pipe and SE tuner I would think this should be closer to 118hp and. However what might make a good stage 2 cam might be a little weak for a stage 4 engine and what might be a good cam for a stage 4 engine might be overkill for a stage 2 you know what I mean.

A Stage 4 on the stock 103 platform will gain you 103 hp with 110ft-lbs of torque and the Bolt on 110Ci cylinders with stage 1 gets you 105 hp pretty respectable for a stock freedom machine with new jugs and stock heads. This is a basic explanation and you should reference a Harley dealership or the HD website to get all the specifics for each stage kit. Youll feel the difference as soon as you twist the throttle.

That is the Stage 4 upgrade. This stage IV comes with 110heads 260 cams 58mm throttle body injectors it realy moves but low end below 3000 rpms is alittle sluggish but once you get going all I can say is hang on. Expect to feel exceptional acceleration delivering significant gains and up to a 50 increase in the higher RPM range.

The system-matched combination of larger displacement cylinders free flowing CNC-Ported cylinder heads and a cam with the highest available valve lift are the starting point to building the perfect engine for the. Additional supportive mods would be required such as clutch and other upgrades. It comes with forged high compression pistons.