Harley Twin Cam, 110 cu in, 4.010 bore, 4.375 stroke, 7.667 rod, 9.25:1 CR, Screamin Eagle 95cc head
Make
Harley Davidson
Engine Size
110 CI
Model
Twin Cam W/ SE Head
Bore (in)
4.01
Stroke (in)
4.375
Comp Ratio
9.25:1
Dome CC
-2
Comp Height
1.085
Piston Part Number
BHM5102
Conrod Part Nmber
PSR6161
Pint Part Number
927-2250-15CP1C
Locks Part Number
927x073 SWL
Rings
RS1660-4007-0
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
More Information
Product Name
Harley Twin Cam, 110 cu in, 4.010 bore, 4.375 stroke, 7.667 rod, 9.25:1 CR, Screamin Eagle 95cc head
Brands
CP Carrillo
Delivery & Freight
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
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 BHM5102 pistons?
For the BHM5102 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 common for performance applications, but always verify with the supplied instructions and adjust based on your specific engine build.
What type of rings are included with the BHM5102 pistons?
The BHM5102 pistons come with RS1660-4007-0 ring sets. These rings are designed to provide optimal sealing and performance. Ensure you check the ring gap specifications provided in the instructions for proper installation.
What is the compression height of the BHM5102 pistons and how does it affect my build?
The compression height of the BHM5102 pistons is 1.085 inches. This dimension is critical for achieving the desired compression ratio in your engine. Ensure that it aligns with your connecting rod length and crankshaft stroke to maintain proper piston position within the cylinder.
Can I use the BHM5102 pistons with stock Harley Davidson components?
While the BHM5102 pistons are designed for performance applications, they can be used with stock Harley Davidson components. However, modifications may be necessary to accommodate the increased performance, and it's essential to verify compatibility with your specific engine configuration.
What material are the BHM5102 pistons made from and what are the benefits?
The BHM5102 pistons are forged from high strength 2618 alloy, which offers excellent durability and resistance to thermal expansion. This material is ideal for high-performance applications, providing reliability under increased loads and temperatures.
