Chevy 428ci ASCS 4.125 Bore 1.000 CH 14:1 CR - Lefts & Rights (CP Bullets BCR1215-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BCR1215-STD |
|
Bore (in) |
4.125 |
|
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 |
428 |
|
Piston Weight |
437 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy 428ci ASCS 4.125 Bore 1.000 CH 14:1 CR - Lefts & Rights (CP Bullets BCR1215-STD) |
|---|---|
| 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-STD pistons?
For the BCR1215-STD pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, final clearance should be determined based on your specific engine build and intended use.
What compression ratio can I expect with the BCR1215-STD pistons?
The BCR1215-STD pistons provide a compression ratio of approximately 14.3:1 when used with a 64cc head. Ensure that your engine is properly tuned to handle this high compression for optimal performance.
Do I need to modify my cylinder head for the BCR1215-STD pistons?
The BCR1215-STD pistons feature two valve reliefs, which should accommodate most standard small block Chevy heads. However, it's advisable to check for clearance with your specific valve train setup to avoid interference.
What is the weight of the BCR1215-STD pistons and how does it affect my engine?
The BCR1215-STD pistons weigh 437 grams each. This weight is suitable for high-performance applications, but ensure your rotating assembly is balanced to maintain engine reliability and performance.
What type of rings are compatible with the BCR1215-STD pistons?
The BCR1215-STD pistons use 1.2mm x 1.2mm x 3.0mm ring sets. Ensure you select high-quality rings designed for performance applications to match the demands of your engine build.
