Harley Twin Cam, 88 cu in, 3.760 bore, 4.000 stroke, 9.75:1
Please allow up to 2 weeks for delivery. If it is any longer, we will contact you.
Feel free to contact us to confirm delivery time before you order.
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
Harley Twin Cam, 88 cu in, 3.760 bore, 4.000 stroke, 9.75:1
|
Make |
Harley Davidson |
|
Engine Size |
88 CI |
|
Model |
Twin Cam |
|
Bore (in) |
3.76 |
|
Stroke (in) |
4 |
|
Comp Ratio |
9.75:1 |
|
Dome CC |
9.3 |
|
Comp Height |
1.27 |
|
Piston Part Number |
M5012 |
|
Conrod Part Nmber |
PSR6161 |
|
Pint Part Number |
927-2500-15CP1C |
|
Locks Part Number |
927x073 SWL |
|
Rings |
RS1110-3760-0 |
|
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 Twin Cam, 88 cu in, 3.760 bore, 4.000 stroke, 9.75:1 |
|---|---|
| Brands | CP Carrillo |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
You can calculate shipping rates inside the shopping cart. After adding all the products you would like, navigate to the cart and click the ESTIMATE SHIPPING & TAX link. .
If you only see the Click and Collect shipping option, it means that your address was not validated correctly.
If you have issues calculating freight, please get in touch. We are happy to help.
Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
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 M5012 pistons?
For the M5012 pistons, a typical bore clearance of 0.0025" to 0.0035" is recommended. However, it's crucial to consult your engine builder for specific requirements based on your application and machining tolerances.
What type of ring end gap should I use with the M5012 pistons?
The ring end gap for the M5012 pistons should be set according to the supplied instructions, typically around 0.004" to 0.005" per inch of bore diameter. Ensure you verify this based on your specific engine setup and intended use.
Do I need to perform any specific machining on the M5012 pistons before installation?
The M5012 pistons are CNC machined and should be ready for installation. However, you may need to check and adjust the piston-to-cylinder clearance and ensure the ring gaps are set correctly before installation.
What is the compression height of the M5012 pistons and how does it affect my build?
The M5012 pistons have a compression height of 1.27 inches. This measurement is critical for achieving the desired compression ratio in your engine build, so ensure it aligns with your cylinder head and gasket specifications.
What type of wrist pins are included with the M5012 piston kit?
The M5012 piston kit includes high-strength wrist pins designed to handle the performance demands of the Harley Twin Cam engine. Ensure proper lubrication and fitment during installation to maintain reliability.
