
Moonshine 128 Builds
Below you will find an assortment of sample dyno charts for various Harley combinations, this is a work in progress. We will be adding more & more Harley charts as well as Metric & Euro charts as we go from the 2000+ bikes we have tuned over the past 2 decades. Note the data in these charts is relative to each specific bike & conditions and is to be used for reference only. Results can/will vary. Note: this is a fraction of the charts from our database and testing

The Moonshine 128 M8 143 is a special all inclusive build we offer in-house only, it is not offered as a kit. This combination is designed as a full effort race type engine; it requires 110+ octane fuel and it is not a touring engine. This engine requires a very specific recipe of components and is offered professionally built, turn key.
Moonshine 128 Horsepower Kit includes the following:
- Darkhorse Crankworks rotating assembly; trued, balanced, welded crankshaft w/Carrillo H-beam rods, bore engine cases, heavy duty studs, balancer removed (requires 4.5″ crankshaft – additional cost for 107″ motors)
- Full effort cylinder heads; oversize valves, extensive modifications & porting by Ward Performance
- Custom pistons by CP Carrillo, special application sleeved cylinders
- Wood Performance camshaft, lifters, & valve springs
- 64mm Throttle body, custom CNC porting by Ward Performance
- Fuel Injectors, Air Cleaner assembly
- S&S cam plate/oil pump, tappet cuffs, head bolts, rocker arm studs
- Fuel Moto by Burns 2/1 exhaust system
- AIM SDR clutch & springs
- Billet clutch basket
- Chain drive conversion
- Complete installation labor, dyno break in & comprehensive dyno tune
Note this engine build is not emissions compliant or designed for street use; for off road – race use only.

The Moonshine 128 M8 143 is a special all inclusive build we offer in-house only, it is not offered as a kit. This combination is designed as a full effort race type engine; it requires 110+ octane fuel and it is not a touring engine. This engine requires a very specific recipe of components and is offered professionally built, turn key.
Moonshine 128 Horsepower Kit includes the following:
- Darkhorse Crankworks rotating assembly; trued, balanced, welded crankshaft w/Carrillo H-beam rods, bore engine cases, heavy duty studs, balancer removed (requires 4.5″ crankshaft – additional cost for 107″ motors)
- Full effort cylinder heads; oversize valves, extensive modifications & porting by Ward Performance
- Custom pistons by CP Carrillo, special application sleeved cylinders
- Wood Performance camshaft, lifters, & valve springs
- 64mm Throttle body, custom CNC porting by Ward Performance
- Fuel Injectors, Air Cleaner assembly
- S&S cam plate/oil pump, tappet cuffs, head bolts, rocker arm studs
- Fuel Moto by Burns 2/1 exhaust system
- AIM SDR clutch & springs
- Billet clutch basket
- Chain drive conversion
- Complete installation labor, dyno break in & comprehensive dyno tune
Note this engine build is not emissions compliant or designed for street use; for off road – race use only.

The Moonshine 128 M8 143 is a special all inclusive build we offer in-house only, it is not offered as a kit. This combination is designed as a full effort race type engine; it requires 110+ octane fuel and it is not a touring engine. This engine requires a very specific recipe of components and is offered professionally built, turn key.
Moonshine 128 Horsepower Kit includes the following:
- Darkhorse Crankworks rotating assembly; trued, balanced, welded crankshaft w/Carrillo H-beam rods, bore engine cases, heavy duty studs, balancer removed (requires 4.5″ crankshaft – additional cost for 107″ motors)
- Full effort cylinder heads; oversize valves, extensive modifications & porting by Ward Performance
- Custom pistons by CP Carrillo, special application sleeved cylinders
- Wood Performance camshaft, lifters, & valve springs
- 64mm Throttle body, custom CNC porting by Ward Performance
- Fuel Injectors, Air Cleaner assembly
- S&S cam plate/oil pump, tappet cuffs, head bolts, rocker arm studs
- Fuel Moto by Burns 2/1 exhaust system
- AIM SDR clutch & springs
- Billet clutch basket
- Chain drive conversion
- Complete installation labor, dyno break in & comprehensive dyno tune
Note this engine build is not emissions compliant or designed for street use; for off road – race use only.
128 Build Gallery
Check out some of our most recent Moonshine Harley 128 Builds. Have Questions or Ready to Get Started? Contact Us Today!

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