BH575-950-020 Gen3 Dodge Hemi 3.937" bore, 3.795" stroke, 6.200" rod, .927" pin. '09-Present 5.7 Eagle head, -17.9cc, 9.50:1 comp (CP Bullets BH575-950-020)
BH61-1075-010 Gen3 Dodge Hemi 4.065" bore, 4.080" stroke, 6.125" rod, .866" pin. '05-'11 6.1L head, -10.6cc, 10.75:1 comp (CP Bullets BH61-1075-010)
BH57-925-020 Gen3 Dodge Hemi 3.937" bore, 4.080" stroke, 6.125" rod, .866" pin. '03-'08 5.7L head, -10.3cc, 9.25:1 comp. (CP Bullets BH57-925-020)
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|
Make |
Dodge |
|
Engine Type |
Hemi |
|
Part Number |
BH57-925-020 |
|
Bore (in) |
3.937 |
|
Stroke (in) |
4.08 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.1 |
|
Head Type |
5.7 Hemi |
|
Head CC |
85 |
|
Dome / Dish Height |
-0.082 |
|
Dom/Dish CC |
-10.3 |
|
Compression Ratio |
9.25 |
|
Pin |
.866 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.160 / -.060 |
|
Cubic Inch |
397 |
|
Piston Weight |
469 |
|
Style |
Inv |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | BH57-925-020 Gen3 Dodge Hemi 3.937" bore, 4.080" stroke, 6.125" rod, .866" pin. '03-'08 5.7L head, -10.3cc, 9.25:1 comp. (CP Bullets BH57-925-020) |
|---|---|
| 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 compression ratio for the BH57-925-020 pistons?
The BH57-925-020 pistons are designed for a compression ratio of 9.25:1 when used with the appropriate 5.7L Hemi cylinder head. Ensure that your engine's setup, including head cc and gasket thickness, aligns with this specification for optimal performance.
What are the specific dimensions of the pin for the BH57-925-020 pistons?
The BH57-925-020 pistons feature a pin size of .866 inches in diameter and a length of 2.250 inches. Ensure that your conrods are compatible with these pin dimensions for proper fitment.
Do the BH57-925-020 pistons require any special machining?
While the BH57-925-020 pistons are designed for a direct fit, it's essential to check bore clearance and set ring gaps according to your engine's specifications. Always consult with your engine builder to ensure proper machining and fitment.
What is the weight of the BH57-925-020 pistons?
Each BH57-925-020 piston weighs approximately 469 grams. This weight should be considered when balancing your rotating assembly to maintain engine performance and reliability.
Are there any specific considerations for valve reliefs on the BH57-925-020 pistons?
The BH57-925-020 pistons come with two valve reliefs designed for compatibility with the 5.7L Hemi engine. Ensure that your camshaft profile and valve timing are compatible to avoid interference during operation.
