Small Block Chevy Dome +5cc All 23 Heads 4.040 Bore,3.563 stroke, 6.000 rod 11.5 to 1 comp with a 64cc head (CP Bullets BC1043-040)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1043-040 |
|
Bore (in) |
4.04 |
|
Stroke (in) |
3.563 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.219 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
0.25 |
|
Dom/Dish CC |
5.1 |
|
Compression Ratio |
11.5 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
365 |
|
Piston Weight |
427 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dome +5cc All 23 Heads 4.040 Bore,3.563 stroke, 6.000 rod 11.5 to 1 comp with a 64cc head (CP Bullets BC1043-040) |
|---|---|
| Brands | CP Carrillo |
| Engine | SB Chevrolet / Holden |
| 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 BC1043-040 pistons?
The BC1043-040 pistons are designed to achieve a compression ratio of 11.5:1 when used with a 64cc cylinder head. Ensure your engine's overall combination supports this compression for optimal performance.
What bore size is required for the BC1043-040 pistons?
These pistons are designed for a bore size of 4.040 inches. It's crucial to ensure that your engine block is machined to this specification for proper fitment.
What is the weight of the BC1043-040 pistons and how does it affect performance?
The BC1043-040 pistons weigh 427 grams. While lighter pistons can improve throttle response and reduce reciprocating mass, ensure that your engine is balanced with the full rotating assembly to maintain reliability.
Do the BC1043-040 pistons require specific machining for fitment?
Yes, the BC1043-040 pistons may require specific machining for proper fitment, including checking bore clearance and ensuring the ring gaps are set correctly. Always consult with your engine builder for precise machining requirements.
What type of valve reliefs do the BC1043-040 pistons have?
The BC1043-040 pistons feature two valve reliefs. This design is intended to accommodate typical valve sizes used in Small Block Chevy applications, but always verify clearance with your specific cylinder head setup.
