Small Block Chevy Dome +5cc All 23 Heads 4.125 Bore,4.000 stroke, 6.000 rod 13.7 to 1 comp with a 62cc head (CP Bullets BC1112-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1112-STD |
|
Bore (in) |
4.125 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6 |
|
Comp Height |
1 |
|
Head Type |
All 23 deg |
|
Head CC |
62 |
|
Dome / Dish Height |
0.235 |
|
Dom/Dish CC |
5.1 |
|
Compression Ratio |
13.7 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
428 |
|
Piston Weight |
414 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dome +5cc All 23 Heads 4.125 Bore,4.000 stroke, 6.000 rod 13.7 to 1 comp with a 62cc head (CP Bullets BC1112-STD) |
|---|---|
| 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 compression ratio for the BC1112-STD pistons with a 62cc head?
The BC1112-STD pistons are designed to achieve a compression ratio of 13.7:1 when used with a 62cc cylinder head. Ensure that your engine is properly tuned to handle this high compression for optimal performance.
What machining considerations should I keep in mind when installing the BC1112-STD pistons?
When installing the BC1112-STD pistons, ensure that the bore clearance is set correctly according to your engine's specifications. Additionally, check that the ring gaps are properly set and that the piston-to-wall clearance is within acceptable limits for your application.
Can I use the BC1112-STD pistons with any Small Block Chevy engine?
The BC1112-STD pistons are compatible with Small Block Chevy engines that have a 4.125-inch bore and a 4.000-inch stroke. Always verify that your engine's specifications match these dimensions before installation.
What is the weight of the BC1112-STD pistons, and how does it affect my engine's performance?
The BC1112-STD pistons weigh 414 grams each. While lighter pistons can improve engine response and RPM potential, ensure that your engine's rotating assembly is balanced to accommodate this weight for optimal performance and reliability.
What type of valve reliefs do the BC1112-STD pistons have?
The BC1112-STD pistons feature two valve reliefs. This design allows for clearance with the valves, but it's crucial to verify that your specific cylinder head and camshaft combination provides adequate clearance to prevent interference.
