Small Block Chevy Dome +5cc All 23 Heads 4.060 Bore,3.750 stroke, 5.700 rod 12.2 to 1 comp with a 64cc head (CP Bullets BC1046-060)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1046-060 |
|
Bore (in) |
4.06 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
5.7 |
|
Comp Height |
1.425 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
0.25 |
|
Dom/Dish CC |
5.1 |
|
Compression Ratio |
12.3 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
388 |
|
Piston Weight |
470 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dome +5cc All 23 Heads 4.060 Bore,3.750 stroke, 5.700 rod 12.2 to 1 comp with a 64cc head (CP Bullets BC1046-060) |
|---|---|
| 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 BC1046-060 pistons with a 64cc head?
The BC1046-060 pistons are designed to achieve a compression ratio of approximately 12.3:1 when used with a 64cc cylinder head. However, actual compression can vary based on factors such as head gasket thickness and combustion chamber modifications.
What machining is required for the BC1046-060 pistons?
When installing the BC1046-060 pistons, ensure that the cylinder bores are properly honed to the correct clearance for a 4.060-inch bore. Additionally, verify that the ring gaps are set according to your engine's specifications and intended use.
What is the weight of the BC1046-060 pistons, and how does it affect performance?
The BC1046-060 pistons weigh 470 grams each. While lighter pistons can improve engine response and reduce reciprocating mass, ensure that your rotating assembly is balanced properly to maintain reliability and performance.
Are there specific valve relief considerations for the BC1046-060 pistons?
Yes, the BC1046-060 pistons feature two valve reliefs. It is crucial to check valve clearance during installation, especially if using aftermarket camshafts or heads, to prevent interference.
What type of pin is used with the BC1046-060 pistons?
The BC1046-060 pistons use a .927 x 2.500-inch pin. Ensure that your connecting rods are compatible with this pin size for proper fitment.
