Fits both EFI and Carb Models

The above photo is for visual representation only. Parts may vary slightly for different jobs.

We are offering our 103 inch kits for 2007 and later models in three configurations to suit all possible applications.
We call them Touring, Sport Touring and Sport
Touring packages will have a compression ratio of 10:1 and should be used on Baggers and heavy Softail models used for two up riding in regions that have steep grades and/or lower octane fuels. (under 91 octane)
Sport Touring is set up at 10.5:1 and is preferred for Baggers and heavy Softails that have access to 91+ octane fuel and are mostly driven by a solo rider. These are very reliable combinations but may require a modification in riding style ‘if’ lower, less than 91 octane, fuel is purchased. Usually this means down shifting to pass (eliminating detonation) instead of just rolling it on.
Sport packages are set up at 11:1 compression ratios and are only for use on lighter bikes like Dynas and Softail Deuces or some custom builds. 

Touring package includes Head Quarters  HVP ported heads and cylinder boring. forged pistons for 10:1 compression ratio, HQ-TC-575-HC cams.
click here for-> Build list for Above Kit

Sport Touring package includes Head Quarters  HVP ported heads and cylinder boring, forged pistons for 10.5:1 compression ratio, HQ-TC-575-HC cams.
click here for-> Build list for Above Kit

Sport package includes Head Quarters  HVP ported heads and cylinder boring. 11cc domed forged pistons for 11:1 compression ratio, HQ-TC-600-HC cams.
click here for-> Build list for Above Kit

 All above packages include MLS type head gaskets

Complimentary Optional Parts
Decompression Valves (compression releases installed)
Adjustable Pushrods, covers and  Hydrualic Lifters
 

Power and fuel mileage expectations.     Torque      Horsepower           Mileage
Touring                                                    110-120        100-110                43 MPG
Sport Touring                                          115-125        105-115                45 MPG
Sport                                                        120-130        110-120                45 MPG
The above using stock carbs or throttle bodies and good 2 into 1 pipes. Larger carbs and throttle bodies will increase HP and decrease Torque.
 

Special Note: * 1999 through 2006 models can also be turned into 103 motors with the use of a 4-3/8” stroke crank. *

Optional Parts:
Cams, cam gears, pushrods, pushrod covers, hydraulic lifters, exhaust venturis, ignitions and carb jetting (where required) are all available and recommended.