Harley Twin Cam, 103 cu in,3.875 bore, 4.375 stroke,10.25:1
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Harley Twin Cam, 103 cu in,3.875 bore, 4.375 stroke,10.25:1
|
Make |
Harley Davidson |
|
Engine Size |
103 CI |
|
Model |
Twin Cam |
|
Bore (in) |
3.875 |
|
Stroke (in) |
4.375 |
|
Comp Ratio |
10.25:1 |
|
Dome CC |
1.4 |
|
Comp Height |
1.092 |
|
Piston Part Number |
M5023 |
|
Conrod Part Nmber |
PSR6161 |
|
Pint Part Number |
927-2500-15CP1C |
|
Locks Part Number |
927x073 SWL |
|
Rings |
RS111A-3875-0 |
|
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 | Harley Twin Cam, 103 cu in,3.875 bore, 4.375 stroke,10.25:1 |
|---|---|
| Brands | CP Carrillo |
Delivery & Freight
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If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
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 piston to cylinder clearance for the M5023 pistons?
For the M5023 pistons, a typical piston to cylinder clearance is around 0.0025" to 0.0030". However, it's crucial to verify this with your specific engine setup and follow the manufacturer's guidelines for best results.
What type of rings are included with the M5023 piston kit?
The M5023 piston kit includes RS111A-3875-0 rings. Ensure that you follow the recommended ring end gap specifications provided in the installation instructions for optimal performance.
What is the compression height of the M5023 pistons?
The compression height of the M5023 pistons is 1.092 inches. This measurement is critical for achieving the desired compression ratio and ensuring proper fitment in your Harley Twin Cam engine.
Can the M5023 pistons be used with aftermarket conrods?
Yes, the M5023 pistons can be used with aftermarket conrods, such as the PSR6161. Ensure that the conrod and piston combination maintains the correct clearances and compatibility for your specific engine build.
What material are the M5023 pistons made from?
The M5023 pistons are forged from high strength 2618 alloy, which provides excellent durability and performance under high-stress conditions typical of modified Harley engines.
