Harley Evo, 1340cc, 3.500 bore, 4.250 stroke, 9.75:1
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Harley Evo, 1340cc, 3.500 bore, 4.250 stroke, 9.75:1
|
Make |
Harley Davidson |
|
Engine Size |
1340cc |
|
Model |
Evo |
|
Bore (in) |
3.5 |
|
Stroke (in) |
4.25 |
|
Comp Ratio |
9.75:1 |
|
Dome CC |
12.1 |
|
Comp Height |
1.375 |
|
Piston Part Number |
M5001 |
|
Conrod Part Nmber |
N/A |
|
Pint Part Number |
792-2500-14CP1C |
|
Locks Part Number |
787x050 SWL |
|
Rings |
RS1227-3500-0 |
|
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 Evo, 1340cc, 3.500 bore, 4.250 stroke, 9.75:1 |
|---|---|
| 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 bore clearance for the M5001 pistons?
The recommended bore clearance for the M5001 pistons is typically around 0.0025" to 0.0035". However, it is crucial to verify this with your specific engine build and ensure proper fitting.
What type of wrist pins are included with the M5001 piston kit?
The M5001 piston kit includes high-strength wrist pins designed to complement the pistons and ensure reliable performance under load. The specific part number for the wrist pins is 792-2500-14CP1C.
What is the maximum recommended RPM for the M5001 pistons?
While the M5001 pistons are designed for performance, typical use ranges suggest a maximum RPM of around 6,500. Always consider your engine's specific setup, tuning, and components when determining safe RPM limits.
Do I need to machine the cylinder head when using M5001 pistons?
Depending on your engine's current setup and desired compression ratio, you may need to machine the cylinder head to achieve the optimal fit and performance with the M5001 pistons. Always consult with your engine builder for specific requirements.
