Harley Shovelhead, 80 cu in, 3.503 bore, 4.250 stroke, 9.5:1
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Harley Shovelhead, 80 cu in, 3.503 bore, 4.250 stroke, 9.5:1
|
Make |
Harley Davidson |
|
Engine Size |
80 CI |
|
Model |
Shovel Head |
|
Bore (in) |
3.503 |
|
Stroke (in) |
4.25 |
|
Comp Ratio |
9.5:1 |
|
Dome CC |
45 |
|
Comp Height |
1.3 |
|
Piston Part Number |
M5048 |
|
Conrod Part Nmber |
N/A |
|
Pint Part Number |
791-2500-14CP1C |
|
Locks Part Number |
787x050 SWL |
|
Rings |
RS1227-3505-0 |
|
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 | Harley Shovelhead, 80 cu in, 3.503 bore, 4.250 stroke, 9.5:1 |
|---|---|
| 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 M5048 pistons?
The M5048 pistons are designed for a 3.503 inch bore. It is crucial to set the bore clearance according to the specific application and the engine builder's preferences. A typical clearance range for performance applications is around 0.0020 to 0.0040 inches, but always confirm with your engine specifications.
What type of ring end gap should I use with the M5048 pistons?
For the M5048 pistons, follow the manufacturer's instructions for setting the ring end gaps. Generally, performance applications may require wider gaps than stock specifications to accommodate thermal expansion, especially if running higher RPMs or boost.
What is the compression height of the M5048 pistons and how does it affect my setup?
The M5048 pistons have a compression height of 1.3 inches. This measurement is critical for achieving the desired compression ratio in your engine. Ensure that the combination of piston, cylinder head, and gasket thickness aligns with your target compression ratio of 9.5:1.
Do I need to modify the cylinder heads when using M5048 pistons?
Depending on the specific setup and desired performance, you may need to modify the cylinder heads to achieve optimal combustion chamber shape and volume. It's essential to check for clearance and compatibility with the piston dome design.
What materials are the M5048 pistons made from and what are the benefits?
The M5048 pistons are forged from high strength 2618 alloy, which offers excellent durability and resistance to thermal expansion. This material is ideal for performance applications where high temperatures and pressures are common, providing reliability and strength under demanding conditions.
