Harley Davidson | S&S 107ci Big Bore Kit – Black | TwinCam | 07-17


Please add any motorcycle modifications such as exhaust type, whether full system or de-cat system, filter etc.
Please Note: - It is your responsibility to ensure you have provided all relevant make and model details and that they are accurate. Dynobike will in no way be held responsible for any modifications made to your ECU whatsoever. This will void most warranties. This modification is not for public roads or highway use and does not comply with emission and noise regulations for Australia. Suitable for closed circuit track use only. It is illegal for restricted license holders to ride modified a motorcycle on public roads. Dynobike Pty Ltd is not responsible for any damages, problems, or fees associated with the tampering of emissions and noise controls.
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Product Details

Features & Benefits:-

* Includes 3cc Dome Forged Pistons.

* Includes 0.045in. Head Gaskets.

* 3.937in. Bore.

* 4-3/8in. Stroke.

* 10.5:1 Compression Ratio with Stock 85cc Heads.

* 10.1:1 Compression Ratio with S&S 89cc Heads # SS106-3240.

Tech Tips:-

* Use Care during assembly to avoid damage to Cylinder Spigots.

* Ring gaps must be checked & Recorded by the assembling Technician.

* Piston to Cylinder Clearance must be checked by the a ssembling Technician & Cylinders honed with torque plates fitted if required.

* Rev Limit should be set at 2500 rpm for the first 80klm.

* Rev Limit should then be set at 3500 rpm for a further 1,500klm.

* To prevent Detonation, Over fuelling etc a Proven EFI Map is required to adjust the Factory Fuel & Timing Calibrations & bring your Engine into Equilibrium with your new Mods.

Tech Tips:-

* Will Not Fits with S&S 79cc Heads.

Proudly Made in the USA by S&S Cy cle !

MFR PART No: 910-0500
Dynobike PART No: SS910-0500

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Make Model Year
Harley Davidson All Models (Check) 1999 - 2017