Small Block Chevy Dome +5cc All 23 Heads 4.135 Bore,3.875 stroke, 6.000 rod 13.1 to 1 comp with a 64cc head (CP Bullets BC1220-010)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1220-010 |
|
Bore (in) |
4.135 |
|
Stroke (in) |
3.875 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.062 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
0.235 |
|
Dom/Dish CC |
5.1 |
|
Compression Ratio |
13.1 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
416 |
|
Piston Weight |
438 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dome +5cc All 23 Heads 4.135 Bore,3.875 stroke, 6.000 rod 13.1 to 1 comp with a 64cc head (CP Bullets BC1220-010) |
|---|---|
| Brands | CP Carrillo |
| Engine | SB Chevrolet / Holden |
| 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 compression ratio for the BC1220-010 pistons?
The BC1220-010 pistons are designed to achieve a compression ratio of 13.1:1 when used with a 64cc cylinder head. Ensure that your engine's overall configuration supports this ratio for optimal performance.
What bore and stroke specifications are compatible with the BC1220-010 pistons?
These pistons are compatible with a bore of 4.135 inches and a stroke of 3.875 inches, making them suitable for a 416 cubic inch Small Block Chevrolet engine.
What is the piston weight for the BC1220-010, and how does it affect performance?
The BC1220-010 pistons weigh 438 grams. Lighter pistons can improve engine response and reduce reciprocating mass, but ensure that your engine's balance is maintained for reliability.
What type of valve reliefs do the BC1220-010 pistons have?
The BC1220-010 pistons feature two valve reliefs, which are designed to accommodate typical valve sizes in 23-degree cylinder heads. Verify clearance with your specific valve train setup.
What is the dome height of the BC1220-010 pistons?
The dome height for the BC1220-010 pistons is 0.235 inches. This height contributes to the overall compression ratio and should be considered when calculating clearance and combustion chamber volume.
