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NEW M8 124 & 128 Fuel Moto Big Bore kits

Started by Jamie Long, November 12, 2018, 12:12:30 PM

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Jamie Long

November 12, 2018, 12:12:30 PM Last Edit: November 12, 2018, 03:13:53 PM by Jamie Long
Our big bore kits have just got bigger. We are now offering a FM 124 kit for 107" M8 engines as well as a FM 128 kit for 114" & 117" engines.

Our Fuel Moto 124" and 128" M8 bore kits are true bolt on combinations (no case boring required) and are sold as complete kits with the absolute highest quality components, all of which have been extensively tested in house both on the dynamometer as well as in real world conditions to deliver top level performance. The 124" kit works on 2017-2019 H-D Milwaukee-Eight 107" engines (air cooled & twin cooled) and the 128" kit works on 2017-2019 114 & 117 engines. When combined with the appropriate performance modifications offers output in excess of 140+ horsepower.

These kits are complete with pistons/cylinders, cam, pushrods, lifters, & all necessary gaskets. MSRP is $1699.00
For more info visit


Do you have a dyno sheet for the 124" kit assembled with stock heads?
"Never hang on to a mistake just because you spent time or money making it."

Jamie Long

Quote from: 1FSTRK on November 13, 2018, 01:36:51 PM
Do you have a dyno sheet for the 124" kit assembled with stock heads?

I dont have a specific chart for the 124" 4.375 stroke kit with the same components and stock heads, however yesterday we built a 124" (4.5" stroke) with the same cam and stock heads:

Fuel Moto 124 big bore kit kit with factory bored cylinders, Wood WM8-408 cam, SE64mm TB with CNC ported manifold. He's running the Jackpot 2/1/2 head pipe, Street Outlaw mufflers, and we tuned it with Dynojet Power Vision. We used the stock heads with Wood valve springs in this build.