Small Block Chevy Dome +5cc All 23 Heads 4.060 Bore,3.500 stroke, 6.000 rod 11.5 to 1 comp with a 64cc head (CP Bullets BC1040-060)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1040-060 |
|
Bore (in) |
4.06 |
|
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 |
11.6 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
362 |
|
Piston Weight |
442 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dome +5cc All 23 Heads 4.060 Bore,3.500 stroke, 6.000 rod 11.5 to 1 comp with a 64cc head (CP Bullets BC1040-060) |
|---|---|
| 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 BC1040-060 pistons with a 64cc head?
The BC1040-060 pistons are designed to achieve a compression ratio of approximately 11.6:1 when used with a 64cc head. However, final compression ratio calculations should consider actual head volume and any additional modifications.
What are the specific machining requirements for installing the BC1040-060 pistons?
When installing the BC1040-060 pistons, ensure that the bore clearance is set correctly based on your engine's specifications. Additionally, check that ring gaps are appropriate for your application, and that the piston-to-wall clearance is within acceptable limits for performance use.
What is the weight of the BC1040-060 pistons, and how does it affect engine performance?
The BC1040-060 pistons weigh 442 grams each. Lighter pistons can improve engine response and reduce stress on the connecting rods, but it's essential to balance the entire rotating assembly for optimal performance and reliability.
Are there any specific considerations for valve reliefs on the BC1040-060 pistons?
The BC1040-060 pistons feature two valve reliefs designed to accommodate typical camshaft profiles in Small Block Chevy engines. Ensure that the camshaft used does not exceed the clearance provided by these reliefs to prevent valve-to-piston contact.
What type of pin is used with the BC1040-060 pistons, and what are its dimensions?
The BC1040-060 pistons use a pin with dimensions of .927 inches in diameter and 2.500 inches in length. Ensure that your connecting rods are compatible with these pin specifications for proper fitment.
