SBC 358 All 23° Bore 4.050 CH 1.560 Stroke 3.480 Rod 5.700Flat Top Head 64cc - Lefts & Rights (CP Bullets BCRS1021-050)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BCRS1021-050 |
|
Bore (in) |
4.05 |
|
Stroke (in) |
3.48 |
|
Rod Length (in) |
5.7 |
|
Comp Height |
1.56 |
|
Head Type |
All 23 deg heads |
|
Head CC |
64 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-4.95 |
|
Compression Ratio |
10.3 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.2 x 1.2 x 3.0mm |
|
VR Depth |
-.310 / SP |
|
Cubic Inch |
359 |
|
Piston Weight |
416 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's R/L |
|
Gas Port |
No |
| Product Name | SBC 358 All 23° Bore 4.050 CH 1.560 Stroke 3.480 Rod 5.700Flat Top Head 64cc - Lefts & Rights (CP Bullets BCRS1021-050) |
|---|---|
| Brands | CP Carrillo |
| Engine | Chev |
| Make | GM |
Delivery & Freight
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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 BCRS1021-050 pistons?
For the BCRS1021-050 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on your specific engine build and intended use, so it's best to consult with your engine builder for precise specifications.
What compression ratio can I expect with the BCRS1021-050 pistons in my small block Chev?
The BCRS1021-050 pistons provide a compression ratio of approximately 10.3:1 when used with 64cc heads. Keep in mind that actual compression may vary based on factors such as head gasket thickness and chamber volume.
Do I need to modify my cylinder heads for the BCRS1021-050 pistons?
The BCRS1021-050 pistons feature two valve reliefs designed for compatibility with all 23-degree heads. However, it's advisable to check for clearance with your specific valve sizes and lift to ensure no interference occurs.
What is the weight of the BCRS1021-050 pistons, and how does it affect performance?
The BCRS1021-050 pistons weigh 416 grams each. While lighter pistons can improve throttle response and reduce reciprocating mass, ensure that your engine's rotating assembly is balanced accordingly to maintain reliability.
What type of ring gaps should I set for the BCRS1021-050 pistons?
For the BCRS1021-050 pistons, the recommended ring gap typically ranges from 0.016" to 0.020" for the top rings and slightly more for the second rings, depending on your application and boost levels. Always verify with your engine builder for optimal settings.
