Small Block Chevy Flat top -6.83cc All 23 deg Head 4.040 Bore, 3.875 stroke, 6.000 rod 10.8 to 1 comp with a 64cc head (CP Bullets BC1011-040)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1011-040 |
|
Bore (in) |
4.04 |
|
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 |
10.8 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
397 |
|
Piston Weight |
382 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Flat top -6.83cc All 23 deg Head 4.040 Bore, 3.875 stroke, 6.000 rod 10.8 to 1 comp with a 64cc head (CP Bullets BC1011-040) |
|---|---|
| Brands | CP Carrillo |
| Make | GM |
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 BC1011-040 pistons with a 64cc head?
The BC1011-040 pistons are designed to achieve a compression ratio of 10.8:1 when paired with a 64cc cylinder head. Ensure that your engine is properly assembled and tuned to maximise performance.
What are the specific machining requirements for the BC1011-040 pistons?
These pistons may require specific bore clearances and ring gaps set by the engine builder. It's crucial to check the bore size and ensure proper fitment to avoid any issues during operation.
What is the weight of the BC1011-040 pistons and how does it affect performance?
The BC1011-040 pistons weigh 382 grams each. Lighter pistons can improve engine response and RPM potential, but ensure that your rotating assembly is balanced accordingly to maintain reliability.
Are there any specific installation considerations for the BC1011-040 pistons?
When installing the BC1011-040 pistons, pay attention to the valve reliefs, as these pistons feature two valve reliefs. Ensure correct orientation to avoid interference with the valves during operation.
What type of ring thickness is used with the BC1011-040 pistons?
The BC1011-040 pistons utilise a ring thickness of 1.5 x 1.5 x 3.0mm. Make sure to set the ring gaps according to your specific application for optimal performance.
