Small Block Chevy Flat Top -6.83cc All 23 Heads 4.155 Bore,3.750 stroke, 5.700 rod 11.3 to 1 comp with a 64cc head (CP Bullets BC1105-030)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1105-030 |
|
Bore (in) |
4.155 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
5.7 |
|
Comp Height |
1.425 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-6.9 |
|
Compression Ratio |
11.3 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-0.31 |
|
Cubic Inch |
407 |
|
Piston Weight |
471 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Flat Top -6.83cc All 23 Heads 4.155 Bore,3.750 stroke, 5.700 rod 11.3 to 1 comp with a 64cc head (CP Bullets BC1105-030) |
|---|---|
| Brands | CP Carrillo |
| 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 BC1105-030 pistons?
For the BC1105-030 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, final clearance should be determined by the engine builder based on specific application and tolerances.
What compression ratio can I expect with the BC1105-030 pistons and a 64cc head?
The BC1105-030 pistons provide a compression ratio of 11.3:1 when used with a 64cc cylinder head. Ensure that all components are compatible and that the engine is properly tuned for optimal performance.
What type of ring gaps should I set for the BC1105-030 pistons?
Ring gaps for the BC1105-030 pistons should be set according to the engine's intended use. A common starting point is 0.004" per inch of bore for the top rings and slightly larger for the second rings, but always consult with your engine builder for specific recommendations.
Do I need to modify the piston for valve clearance when using the BC1105-030 pistons?
The BC1105-030 pistons come with two valve reliefs designed for compatibility with typical small block Chevy applications. However, it's essential to verify clearance with your specific camshaft and head combination to avoid interference.
What is the weight of the BC1105-030 pistons, and how does it affect my engine build?
The BC1105-030 pistons weigh 471 grams each. This weight can influence engine balance and performance, particularly in high RPM applications. Ensure that your rotating assembly is balanced accordingly to maintain reliability.
