Chevy 361ci ASCS 4.050 Bore 1.250 CH 14cc Dome Vert Gas Ports - Lefts & Rights (CP Bullets BCRE1340-050)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BCRE1340-050 |
|
Bore (in) |
4.05 |
|
Stroke (in) |
3.5 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.25 |
|
Head Type |
ASCS |
|
Head CC |
58 |
|
Dome / Dish Height |
0.5 |
|
Dom/Dish CC |
14.07 |
|
Compression Ratio |
14.2 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.0 x 1.0 x 2.0mm |
|
VR Depth |
-.335 / SP |
|
Cubic Inch |
361 |
|
Piston Weight |
480 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Chevy 361ci ASCS 4.050 Bore 1.250 CH 14cc Dome Vert Gas Ports - Lefts & Rights (CP Bullets BCRE1340-050) |
|---|---|
| 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 BCRE1340-050 pistons?
For the BCRE1340-050 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, final clearance should be determined based on the specific application, engine temperature, and intended use.
What compression ratio can I expect with the BCRE1340-050 pistons?
The BCRE1340-050 pistons provide a compression ratio of approximately 14.2:1 when used with a 58cc combustion chamber. Ensure that your engine's setup, including fuel quality and tuning, can support this high compression.
What type of ring package is compatible with the BCRE1340-050 pistons?
The BCRE1340-050 pistons are designed to work with a ring package of 1.0mm x 1.0mm x 2.0mm. Ensure that the ring gaps are set correctly for your application to prevent issues under high RPM and boost conditions.
Do I need to modify my cylinder head for the BCRE1340-050 pistons?
The BCRE1340-050 pistons feature two valve reliefs, which should accommodate most standard small block Chevy cylinder heads. However, it's essential to check for clearance with your specific head and camshaft combination to avoid any interference.
What is the weight of the BCRE1340-050 pistons, and how does it affect my build?
The BCRE1340-050 pistons weigh 480 grams each. While this weight is suitable for performance applications, consider the overall rotating assembly weight and balance to ensure optimal engine performance and reliability.
