Chevy 400ci 4.125 Bore 1.125 CH 14:1 CR - Lefts & Rights (CP Bullets BCRE1522-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BCRE1522-STD |
|
Bore (in) |
4.125 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.125 |
|
Head Type |
23 * Most Heads |
|
Head CC |
64 |
|
Dome / Dish Height |
0.48 |
|
Dom/Dish CC |
11.2 |
|
Compression Ratio |
14.1 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
.043 x .043 x 3.0 |
|
VR Depth |
-.310 / SP |
|
Cubic Inch |
401 |
|
Piston Weight |
506 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Chevy 400ci 4.125 Bore 1.125 CH 14:1 CR - Lefts & Rights (CP Bullets BCRE1522-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 BCRE1522-STD pistons?
For the BCRE1522-STD pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on the specific application and operating conditions, so it's essential to consult with your engine builder.
What type of fuel is suitable for the 14:1 compression ratio of these pistons?
With a 14:1 compression ratio, these pistons are designed for high-octane race fuel or E85. Using lower octane fuel can lead to detonation, which may damage the engine.
Are there specific machining requirements for the BCRE1522-STD pistons?
Yes, the BCRE1522-STD pistons may require specific machining for proper fitment, including checking and potentially honing the bore for correct clearance. Ensure that the piston-to-wall clearance is within recommended limits.
What is the weight of the BCRE1522-STD pistons, and how does it affect engine balance?
The BCRE1522-STD pistons weigh 506 grams each. It's crucial to balance the entire rotating assembly, including these pistons, to minimise vibrations and ensure reliable performance at high RPM.
Can I use these pistons with any small block Chevy head?
The BCRE1522-STD pistons are designed to work with most 23-degree small block Chevy heads. However, always verify the compatibility with your specific head design and ensure proper valve clearance.
