Chevy 404ci ASCS 4.140 Bore 1.125 CH 8cc Dome Vert Gas Ports - Lefts & Rights (CP Bullets BCRE1221-015)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BCRE1221-015 |
|
Bore (in) |
4.14 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.125 |
|
Head Type |
ASCS |
|
Head CC |
64 |
|
Dome / Dish Height |
0.275 |
|
Dom/Dish CC |
8 |
|
Compression Ratio |
13.5 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.0 x 1.0 x 2.0mm |
|
VR Depth |
-.335 / SP |
|
Cubic Inch |
404 |
|
Piston Weight |
459 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy 404ci ASCS 4.140 Bore 1.125 CH 8cc Dome Vert Gas Ports - Lefts & Rights (CP Bullets BCRE1221-015) |
|---|---|
| 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 BCRE1221-015 pistons?
For the BCRE1221-015 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on your specific engine build and operating conditions, so always consult with your engine builder for precise measurements.
What compression ratio can I expect with the BCRE1221-015 pistons?
The BCRE1221-015 pistons are designed to achieve a compression ratio of approximately 13.5:1 when used with a 64cc head. Ensure that your entire setup, including fuel quality and tuning, is suitable for high compression applications.
What type of valve reliefs do the BCRE1221-015 pistons have?
The BCRE1221-015 pistons feature two valve reliefs, which are essential for clearance with the valves in high-performance applications. Ensure your camshaft profile is compatible to avoid interference.
What is the weight of the BCRE1221-015 pistons, and how does it affect performance?
The BCRE1221-015 pistons weigh 459 grams each. While lighter pistons can improve throttle response and reduce reciprocating mass, ensure your connecting rods and crankshaft are rated for the overall engine weight and intended RPM range.
Are the BCRE1221-015 pistons suitable for use with gas ports?
The BCRE1221-015 pistons do not come with gas ports. If you require gas ported pistons for your application, you may need to consider a different model or consult with your engine builder for modifications.
