2017-2022 Harley Milwaukee Eight 143 ci, 4.500" bore, 4.500" stroke, 12.0:1 CR, 1.080" CH
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2017-2022 Harley Milwaukee Eight 143 ci, 4.500" bore, 4.500" stroke, 12.0:1 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 |
12.0:1 |
|
Dome CC |
-7.6 |
|
Comp Height |
1.08 |
|
Piston Part Number |
M5152 |
|
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) |
ROP |
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, 12.0:1 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 are the recommended piston-to-cylinder clearances for the M5152 pistons?
For the M5152 pistons, it is crucial to follow the manufacturer's specifications for piston-to-cylinder clearances. Typically, a clearance of 0.0035" to 0.0045" is recommended for optimal performance, but this can vary based on your specific engine build and intended use. Always consult the supplied instructions for precise measurements.
What type of rings are included with the M5152 piston kit?
The M5152 piston kit includes a complete set of rings: 1-MG10-4505, 2-MS20-4505-THG, and 3-D30-4500-0. Ensure that you follow the guidelines for setting the ring gaps to achieve the best performance and reliability.
What is the recommended compression ratio for the M5152 pistons in a Milwaukee Eight engine?
The M5152 pistons are designed for a compression ratio of 12.0:1. This high compression can provide significant performance benefits, but it's essential to ensure that your engine's fuel quality and tuning are appropriate to handle this ratio.
What material are the M5152 pistons made from?
The M5152 pistons are forged from high-strength 2618 alloy, which offers excellent durability and performance characteristics. This material is ideal for high-performance applications, providing the strength needed for increased horsepower and reliability.
Do the M5152 pistons require any special machining before installation?
Before installation, it is essential to check the bore size and ensure proper honing is done if necessary. The pistons may require specific clearances and ring gap settings as per the supplied instructions, so always verify these details during your engine assembly.
