S&S 117" to 128" Big Bore Bolt-In Kit M8 Wrinkle Black w/Highlight Fins Harley

1 Only in Stock - Get In Quick to save the 3 month shipping time..

Make your new 117ci M8 Harley Davidson go like it should and unleash the beast... check our other listings as we also have cam kits, valve spring and retainers, 55mm big bore intakes, exhaust pipes and any other bolt on's you may require for your new m8 softail model

this big bore kit comes complete with the following

Features & Benefits:-

• Upgrades Milwaukee-Eight 114ci to 128ci
• 114ci to 128ci Big Bore Kit
• 4.250in. Bore
• 4.500in. Stroke (4-1/2in.)
• Forged Pistons.
• 11.1 Compression Ratio.
• Wrinkle Black Finish.
• With Highlighted Fins.
• Bolt-on Kit.
• No Crankcase Machining Required.
• Includes Gaskets & Hardware.

Tech Tips:-

• Will Not Fit 107ci Models.
• Use Care during assembly to avoid damage to Cylinder Spigot s.
• Ring gap & Piston to Cylinder Clearance should be checked.
• Rev Limit should be set at 3500 rpm for Initial Run In Period.
• Re-Calibration of Ignition Timing & Fuel Mixture is required.

Proudly Made in the USA by S&S Cycle !

Not honed cylinders, brand new S&S kit

Fit:

Harley-Davidson M-EIGHT 117" Engines - Lowrider S, Street Bob, Fat bob etc