Small Block Chevy Dome +5cc All 23 Heads 4.000 Bore,3.500 stroke, 6.000 rod 11.2 to 1 comp with a 64cc head (CP Bullets BC1040-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1040-STD |
|
Bore (in) |
4 |
|
Stroke (in) |
3.5 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.25 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
0.25 |
|
Dom/Dish CC |
5.1 |
|
Compression Ratio |
11.3 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
352 |
|
Piston Weight |
427 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dome +5cc All 23 Heads 4.000 Bore,3.500 stroke, 6.000 rod 11.2 to 1 comp with a 64cc head (CP Bullets BC1040-STD) |
|---|---|
| Brands | CP Carrillo |
| Engine | SB Chevrolet / Holden |
| Make | GM |
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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 BC1040-STD pistons with a 64cc head?
The BC1040-STD pistons are designed to achieve a compression ratio of approximately 11.3:1 when used with a 64cc cylinder head. However, actual compression may vary based on factors such as head gasket thickness and combustion chamber modifications.
What machining is required for the BC1040-STD pistons?
When installing the BC1040-STD pistons, ensure that the bore clearance is set according to the manufacturer's specifications. Additionally, verify that the ring gaps are properly set to accommodate your specific application and operating conditions.
What is the weight of the BC1040-STD pistons and how does it affect performance?
The BC1040-STD pistons weigh 427 grams each. While this weight is suitable for performance applications, it's important to balance the entire rotating assembly to ensure optimal performance and reliability, especially at higher RPMs.
Are there any specific considerations for valve reliefs on the BC1040-STD pistons?
The BC1040-STD pistons feature two valve reliefs, which are designed to accommodate typical camshaft profiles in small block Chevy engines. Always verify clearance with your specific cylinder head and camshaft setup to prevent interference.
What is the pin size for the BC1040-STD pistons, and how does it affect conrod selection?
The BC1040-STD pistons use a pin size of .927 x 2.500 inches. Ensure that your conrods are compatible with this pin size for proper fitment and performance. Always check the manufacturer's specifications for conrod and piston compatibility.
