Small Block Chevy 416ci ASCS 4.135 Bore 1.062 CH 13.8:1 CR - Lefts & Rights (CP Bullets BCRE1220-010)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BCRE1220-010 |
|
Bore (in) |
4.135 |
|
Stroke (in) |
3.875 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.062 |
|
Head Type |
ASCS |
|
Head CC |
64 |
|
Dome / Dish Height |
0.275 |
|
Dom/Dish CC |
8 |
|
Compression Ratio |
13.8 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.0 x 1.0 x 2.0mm |
|
VR Depth |
-.335 / SP |
|
Cubic Inch |
416 |
|
Piston Weight |
443 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy 416ci ASCS 4.135 Bore 1.062 CH 13.8:1 CR - Lefts & Rights (CP Bullets BCRE1220-010) |
|---|---|
| Brands | CP Carrillo |
| Engine | SB Chevrolet / Holden |
| 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 BCRE1220-010 pistons?
For the BCRE1220-010 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 always consult with your engine builder for precise measurements.
What compression ratio can I expect with the BCRE1220-010 pistons?
The BCRE1220-010 pistons are designed to achieve a compression ratio of 13.8:1 when used with a 64cc cylinder head. Ensure that your engine's overall setup, including camshaft and fuel type, is compatible with this high compression for optimal performance.
What is the piston weight of the BCRE1220-010 and how does it affect engine balance?
The BCRE1220-010 pistons weigh 443 grams each. This weight should be considered when balancing the rotating assembly, as it can impact engine dynamics. Ensure that the crankshaft and conrods are matched accordingly to maintain balance and reduce vibration.
Are there any specific machining requirements for the BCRE1220-010 pistons?
Yes, the BCRE1220-010 pistons may require specific machining for optimal fitment, including checking and possibly honing the bore to achieve the correct clearance. Additionally, ensure that the ring grooves are properly finished to accommodate the specified ring thickness.
What type of fuel is recommended for use with the BCRE1220-010 pistons?
Due to the high compression ratio of 13.8:1, it is recommended to use high-octane fuel, such as 98 RON or higher, to prevent detonation. Proper tuning and fuel quality are critical for reliability and performance with these pistons.
