BH641-10-010 Gen3 Dodge Hemi 4.100" bore, 4.050" stroke, 6.125" rod, .927" pin. '11-Present 6.4 head, -9.5cc, 10.0:1 comp (CP Bullets BH641-10-010)
BH64-950-010 Gen3 Dodge Hemi 4.100" bore, 3.720" stroke, 6.200" rod, .927" pin. '11-Present 6.4 head, -8.1cc, 9.5:1 comp (CP Bullets BH64-950-010)
BH642-10-010 Gen3 Dodge Hemi 4.100" bore, 4.080" stroke, 6.125" rod, .866" pin. '11-Present 6.4 head, -10.0cc, 10.0:1 comp (CP Bullets BH642-10-010)
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|
Make |
Dodge |
|
Engine Type |
Hemi |
|
Part Number |
BH642-10-010 |
|
Bore (in) |
4.1 |
|
Stroke (in) |
4.08 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.11 |
|
Head Type |
Apache 6.4 |
|
Head CC |
74.2 |
|
Dome / Dish Height |
-0.063 |
|
Dom/Dish CC |
-10 |
|
Compression Ratio |
10 |
|
Pin |
.866 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.145 / -.065 |
|
Cubic Inch |
431 |
|
Piston Weight |
482 |
|
Style |
Inv |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | BH642-10-010 Gen3 Dodge Hemi 4.100" bore, 4.080" stroke, 6.125" rod, .866" pin. '11-Present 6.4 head, -10.0cc, 10.0:1 comp (CP Bullets BH642-10-010) |
|---|---|
| Brands | CP Carrillo |
| Engine | Hemi V8 |
| Make | Dodge |
Delivery & Freight
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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 BH642-10-010 pistons?
For the BH642-10-010 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on specific engine conditions and builder preferences, so always consult with your engine builder for the best fit.
What ring gap should I use for the BH642-10-010 pistons?
The ring gaps for the BH642-10-010 pistons should generally be set according to the application. For a typical performance build, aim for 0.020" to 0.022" for the top rings and 0.018" to 0.020" for the second rings. Adjustments may be necessary based on boost levels and RPM.
What is the maximum recommended RPM for the BH642-10-010 pistons?
While the BH642-10-010 pistons are designed for high-performance applications, typical use ranges are up to 7,500 RPM. However, reliability at higher RPMs will depend on proper machining, clearances, and tuning.
Do the BH642-10-010 pistons require any special machining?
Yes, the BH642-10-010 pistons may require specific machining such as honing of the bore to achieve the correct clearance. Always ensure that the engine builder checks for proper fitment and clearances before installation.
What is the weight of the BH642-10-010 pistons and how does it affect performance?
The BH642-10-010 pistons weigh 482 grams each. This weight can influence engine balance and performance, particularly in high RPM applications. Lighter pistons can improve throttle response and reduce stress on the connecting rods.
