Chevy 417ci 4.135 Bore 1.062 CH 14.4:1 CR - Lefts & Rights (CP Bullets BCRE1521-010)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BCRE1521-010 |
|
Bore (in) |
4.135 |
|
Stroke (in) |
3.875 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.062 |
|
Head Type |
23 * Most Heads |
|
Head CC |
64 |
|
Dome / Dish Height |
0.48 |
|
Dom/Dish CC |
11.2 |
|
Compression Ratio |
14.4 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
.043 x .043 x 3.0 |
|
VR Depth |
-.310 / SP |
|
Cubic Inch |
416 |
|
Piston Weight |
497 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Chevy 417ci 4.135 Bore 1.062 CH 14.4:1 CR - Lefts & Rights (CP Bullets BCRE1521-010) |
|---|---|
| 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 ideal application for the CP Bullets BCRE1521-010 pistons?
The CP Bullets BCRE1521-010 pistons are designed for high-performance applications in Chevrolet small block engines, particularly suited for racing or high-compression builds due to their 14.4:1 compression ratio.
What machining considerations should I keep in mind when using these pistons?
When using the BCRE1521-010 pistons, ensure that the bore clearance is set correctly, typically around 0.0035" to 0.0045". Additionally, verify that the ring gaps are appropriate for your application, especially given the high compression ratio.
How do the valve reliefs on these pistons affect compatibility with cylinder heads?
The BCRE1521-010 pistons feature two valve reliefs, which are designed to accommodate most 23-degree cylinder heads. However, it's essential to check for clearance with your specific head and camshaft combination to avoid interference.
What is the significance of the gas ports on these pistons?
The gas ports on the BCRE1521-010 pistons help improve ring seal and reduce blow-by, which is particularly beneficial in high-performance applications where maintaining cylinder pressure is critical.
What is the recommended piston-to-wall clearance for these pistons in a 417ci engine?
For the BCRE1521-010 pistons in a 417ci engine, a piston-to-wall clearance of approximately 0.0035" to 0.0045" is recommended, but always consult with your engine builder for specific requirements based on your setup.
