Small Block Chevy Dome +5cc All 23 Heads 4.125 Bore,3.750 stroke, 6.000 rod 12.6 to 1 comp with a 64cc head (CP Bullets BC1200-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1200-STD |
|
Bore (in) |
4.125 |
|
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 |
|
Compression Ratio |
12.6 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
401 |
|
Piston Weight |
436 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dome +5cc All 23 Heads 4.125 Bore,3.750 stroke, 6.000 rod 12.6 to 1 comp with a 64cc head (CP Bullets BC1200-STD) |
|---|---|
| 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 BC1200-STD pistons?
The BC1200-STD pistons are designed to achieve a compression ratio of 12.6:1 when used with a 64cc head. Ensure that your engine's setup, including head type and combustion chamber volume, aligns with this specification for optimal performance.
What bore and stroke specifications do the BC1200-STD pistons accommodate?
These pistons are designed for a bore of 4.125 inches and a stroke of 3.750 inches, making them suitable for a Small Block Chevy engine with a 6.000-inch rod length.
What are the valve relief specifications for the BC1200-STD pistons?
The BC1200-STD pistons feature two valve reliefs, which are essential for providing clearance for the valves during operation. Ensure your cylinder heads are compatible with this design to prevent interference.
What is the weight of the BC1200-STD pistons, and how does it affect performance?
The BC1200-STD pistons weigh 436 grams each. This weight can influence engine balance and performance, particularly at high RPMs. It's crucial to consider the total rotating assembly weight when building your engine.
Are there any specific machining requirements for the BC1200-STD pistons?
Yes, the BC1200-STD pistons require proper bore clearance and ring gaps to be set by the engine builder. Ensure that the bore is honed to the correct size and that the ring gaps are adjusted according to your specific application and power goals.
