Small Block Chevy Flat Top -6.83cc All 23 Heads 4.125 Bore,3.875 stroke, 6.000 rod 11.1 to 1 comp with a 64cc head (CP Bullets BC1111-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1111-STD |
|
Bore (in) |
4.125 |
|
Stroke (in) |
3.875 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.062 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-6.8 |
|
Compression Ratio |
11.1 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
414 |
|
Piston Weight |
402 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Flat Top -6.83cc All 23 Heads 4.125 Bore,3.875 stroke, 6.000 rod 11.1 to 1 comp with a 64cc head (CP Bullets BC1111-STD) |
|---|---|
| Brands | CP Carrillo |
| 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 bore clearance for the BC1111-STD pistons?
For the BC1111-STD pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, final clearance should be determined based on your specific engine build and intended use.
What compression ratio can I expect with the BC1111-STD pistons and a 64cc head?
The BC1111-STD pistons are designed to achieve an 11.1:1 compression ratio when used with a 64cc cylinder head. Ensure that your engine's overall assembly, including head gasket thickness, is accounted for to maintain this ratio.
What type of ring set is compatible with the BC1111-STD pistons?
The BC1111-STD pistons use a ring set with dimensions of 1.5mm x 1.5mm x 3.0mm. Make sure to select a high-quality ring set that matches these specifications for optimal performance.
Are there any specific machining requirements for the BC1111-STD pistons?
Yes, the BC1111-STD pistons may require specific machining, such as honing the cylinder bores to achieve the correct clearance. Always consult with your engine builder to determine the necessary machining for your application.
What is the weight of the BC1111-STD pistons, and how does it affect performance?
The BC1111-STD pistons weigh 402 grams each. While lighter pistons can improve engine response and reduce reciprocating mass, ensure that your engine's balance is maintained, especially if using a high-revving setup.
