Small Block Chevy Dome +5cc All 23 Heads 4.135 Bore,3.750 stroke, 6.000 rod 12.7 to 1 comp with a 64cc head (CP Bullets BC1200-010)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1200-010 |
|
Bore (in) |
4.135 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.125 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
0.235 |
|
Dom/Dish CC |
5.1 |
|
Compression Ratio |
12.8 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
403 |
|
Piston Weight |
447 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dome +5cc All 23 Heads 4.135 Bore,3.750 stroke, 6.000 rod 12.7 to 1 comp with a 64cc head (CP Bullets BC1200-010) |
|---|---|
| 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 BC1200-010 pistons with a 64cc head?
The BC1200-010 pistons are designed to achieve a compression ratio of approximately 12.8:1 when used with a 64cc cylinder head. Ensure that your engine's specifications and fuel quality can support this compression for optimal performance and reliability.
What machining considerations should I keep in mind when using these pistons?
When installing the BC1200-010 pistons, it's crucial to ensure the bore clearance is set correctly according to your engine's specifications. Additionally, check that the ring gaps are properly set and that the piston-to-valve clearance is adequate, especially given the dome design and valve reliefs.
What is the weight of the BC1200-010 pistons, and how does it affect my engine build?
The BC1200-010 pistons weigh 447 grams each. This weight can influence your engine's overall balance and performance, particularly at higher RPMs. It's advisable to balance the entire rotating assembly to accommodate the piston weight for optimal engine operation.
Are there any specific applications or performance goals for which the BC1200-010 pistons are best suited?
The BC1200-010 pistons are well-suited for high-performance Small Block Chevy builds aiming for significant power output, particularly in racing or performance applications. However, ensure that your engine is properly tuned and that all components are compatible to achieve desired results.
What type of pin is used with the BC1200-010 pistons, and what should I know about its installation?
The BC1200-010 pistons use a .927 x 2.500 inch pin. When installing, ensure the pin fitment is correct and that the small-end of the conrod is honed if necessary to achieve the proper clearance for smooth operation.
