2017-2022 Harley Milwaukee Eight 143 ci, 4.500" bore, 4.500" stroke, 11.0:1 CR, 1.080" CH
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2017-2022 Harley Milwaukee Eight 143 ci, 4.500" bore, 4.500" stroke, 11.0:1 CR, 1.080" CH
|
Make |
Harley Davidson |
|
Engine Size |
143 CI |
|
Model |
Milwaukee 8 2017-2022 |
|
Bore (in) |
4.5 |
|
Stroke (in) |
4.5 |
|
Comp Ratio |
11.0:1 |
|
Dome CC |
-18.2 |
|
Comp Height |
1.08 |
|
Piston Part Number |
M5150 |
|
Conrod Part Nmber |
PSR10087 |
|
Pint Part Number |
927-2500-18CP1C |
|
Locks Part Number |
927x073 SWL |
|
Rings |
1-MG10-4505 2-MS20-4505-THG 3-D30-4500-0 |
|
Shelf (RPO) or Made to Order (MTO) |
MTO |
Proudly made in the USA by CP Carrillo Pistons!
- Fully CNC machined
- Balanced to +/- 1 gram
- Double forced pin oilers
- Forged from high strength 2618 alloy
- Designed for maximum performance, horsepower and reliability
- Complete kit includes two pistons, ring sets, wrist pins and clips
- Follow ring end gap and piston to cylinder clearances as per the supplied instructions
| Product Name | 2017-2022 Harley Milwaukee Eight 143 ci, 4.500" bore, 4.500" stroke, 11.0:1 CR, 1.080" CH |
|---|---|
| Brands | CP Carrillo |
Delivery & Freight
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What is the recommended bore clearance for the M5150 pistons?
For the M5150 pistons, a typical bore clearance of 0.0025" to 0.0030" is recommended. However, this can vary based on the specific application and engine builder preferences, so always consult your engine specifications and adjust accordingly.
What type of ring end gap should I use with the M5150 pistons?
The ring end gap for the M5150 pistons should be set according to the specific application and intended use. Generally, a gap of 0.004" to 0.005" per inch of bore is a good starting point, but always refer to the supplied instructions for precise recommendations.
Do I need to machine the piston skirts for my application?
In most cases, the M5150 pistons should fit without additional machining, but it's crucial to check for clearance with the cylinder walls and any other components. If necessary, minor adjustments can be made to ensure proper fitment.
What is the weight tolerance for the M5150 pistons?
The M5150 pistons are balanced to within +/- 1 gram. This ensures consistency across the rotating assembly, which is essential for high-performance applications.
What type of oil should I use for the M5150 piston pin oilers?
For the M5150 pistons, it is recommended to use high-quality engine oil that meets the specifications for your engine. Ensure that the oil is suitable for high-performance applications to maintain optimal lubrication for the double forced pin oilers.
