Chevy 430ci ASCS 4.135 Bore 1.000 CH 14.2:1 CR - Lefts & Rights (CP Bullets BCR1215-010)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BCR1215-010 |
|
Bore (in) |
4.135 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6 |
|
Comp Height |
1 |
|
Head Type |
ASCS |
|
Head CC |
64 |
|
Dome / Dish Height |
0.275 |
|
Dom/Dish CC |
8 |
|
Compression Ratio |
14.3 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.2 x 1.2 x 3.0mm |
|
VR Depth |
-.335 / SP |
|
Cubic Inch |
430 |
|
Piston Weight |
440 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy 430ci ASCS 4.135 Bore 1.000 CH 14.2:1 CR - Lefts & Rights (CP Bullets BCR1215-010) |
|---|---|
| Brands | CP Carrillo |
| Engine | Chev |
| 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 bore clearance for the BCR1215-010 pistons?
For the BCR1215-010 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this may vary based on your specific engine build and intended use, so always consult with your engine builder for precise specifications.
What compression ratio can I expect with the BCR1215-010 pistons?
The BCR1215-010 pistons are designed to achieve a compression ratio of approximately 14.2:1 when used with a 64cc head. This high compression is suitable for racing applications but requires careful tuning and high-octane fuel to prevent detonation.
What type of ring gaps should I use with the BCR1215-010 pistons?
For the BCR1215-010 pistons, a common recommendation is to set the top ring gap at 0.018" to 0.020" and the second ring gap at 0.020" to 0.022". Adjustments may be necessary based on your specific application and operating conditions.
What is the weight of the BCR1215-010 pistons and how does it affect performance?
The BCR1215-010 pistons weigh 440 grams each. This weight is relatively light for a performance piston, which can contribute to improved engine response and RPM capabilities. However, ensure that your connecting rods and crankshaft are also rated for the intended RPM range.
Do the BCR1215-010 pistons require any special machining?
Yes, the BCR1215-010 pistons may require specific machining for optimal fitment, including honing of the bore and ensuring proper clearance with the connecting rods. Always verify with your engine builder to ensure all components are compatible and properly set up.
