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Purchasing Information:
After you place your order on this site, we will contact you to confirm your order details prior to payment being made. All orders will be processed and fulfilled by one of our authorised dealers. Rollies Speed Shop Distribution is a wholesale business and does not sell directly to the general public. For more info see the Purchasing Information page.
Features & Benefits:-
* Upgrades Twin Cam 88ci to 100ci.
* Cast Ductile Iron Liner; Increases Thermal Conductivity, Aids in Heat dissipation & Improves Ring Seal.
* Includes 8.75cc pop up Dome Forged Pistons.
* Includes 0.045in. Head Gaskets.
* 4.00in. Bore with 4.00in. Stroke = 100ci
* 10.5:1 Compression Ratio with Stock 85cc Heads.
* 10.1:1 Compression Ratio with S&S 89cc Heads # SS106-4270
Suggested Additional Purchase:
Dual spray piston c ooling jet kit # SS310-1251
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 assembling Technician and 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.
* Will Not Fit with S&S 79cc Heads.
Proudly Made in the USA by S&S Cycle !
MFR PART No: 910-0642
ROLLIES PART No: SS910-0642
Give us a call us on
(07) 3252 5381 and one of our
parts specialist’s will help
you get the parts you need.Â
