Small Block Chevrolet 408ci 461 4.160 bore 1.125 CH 3.750 stroke 6.000 rod with 64cc head 12.8:1 CR Dome (CP Bullets BC1200-035)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1200-035 |
|
Bore (in) |
4.16 |
|
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 |
408 |
|
Piston Weight |
449 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevrolet 408ci 461 4.160 bore 1.125 CH 3.750 stroke 6.000 rod with 64cc head 12.8:1 CR Dome (CP Bullets BC1200-035) |
|---|---|
| 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 bore clearance for the BC1200-035 pistons?
For the BC1200-035 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on your specific engine setup and operating conditions, so always consult with your engine builder for the best fit.
What compression ratio can I expect with the BC1200-035 pistons and a 64cc head?
The BC1200-035 pistons are designed to achieve a compression ratio of 12.8:1 when used with a 64cc head. Ensure that all components are compatible and properly machined to achieve this ratio reliably.
What are the valve relief specifications for the BC1200-035 pistons?
The BC1200-035 pistons feature two valve reliefs. Ensure that your cylinder heads and camshaft are compatible with these reliefs to avoid any interference during operation.
What is the weight of the BC1200-035 pistons, and how does it affect performance?
The BC1200-035 pistons weigh 449 grams each. Lighter pistons can improve engine responsiveness and RPM potential, but it's crucial to balance them with the rest of the rotating assembly to maintain reliability.
Are the BC1200-035 pistons suitable for high-performance applications?
Yes, the BC1200-035 pistons are designed for high-performance applications, particularly in small block Chevrolet engines. However, ensure proper tuning, fuel quality, and clearances to maximise performance and reliability.
