Small Block Chevy Flat Top -6.83cc All 23 Heads 4.135 Bore,3.875 stroke, 6.000 rod 11.2 to 1 comp with a 64cc head (CP Bullets BC1111-010)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1111-010 |
|
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 |
FT |
|
Dom/Dish CC |
-7.6 |
|
Compression Ratio |
11.2 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.325 / -.325 |
|
Cubic Inch |
416 |
|
Piston Weight |
409 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Flat Top -6.83cc All 23 Heads 4.135 Bore,3.875 stroke, 6.000 rod 11.2 to 1 comp with a 64cc head (CP Bullets BC1111-010) |
|---|---|
| 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 BC1111-010 pistons?
For the BC1111-010 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on the specific application and operating conditions, so always consult with your engine builder for precise measurements.
What compression ratio can I expect with these pistons and a 64cc head?
These pistons are designed to achieve an 11.2:1 compression ratio when used with a 64cc cylinder head. Ensure that your engine's assembly and tuning are optimised to handle this compression level safely.
What is the weight of the BC1111-010 pistons, and how does it affect performance?
The BC1111-010 pistons weigh 409 grams each. Lighter pistons can improve engine response and reduce reciprocating mass, but ensure that your connecting rods and crankshaft are rated for the intended RPM and power levels.
Do the BC1111-010 pistons require any specific machining?
Yes, the BC1111-010 pistons may require specific machining for bore clearance and ring gap settings. It's essential to hone the cylinders to the correct size and ensure the ring gaps are set according to your engine's specifications.
What type of valve reliefs do the BC1111-010 pistons have?
The BC1111-010 pistons feature two valve reliefs, which are designed to accommodate typical valve sizes in small block Chevy applications. Always verify clearance with your specific cylinder head and camshaft combination.
