Small Block Chevy Flat Top -6.83cc All 23 Heads 4.000 Bore,3.750 stroke, 6.000 rod 10.3 to 1 comp with a 64cc head (CP Bullets BC1025-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1025-STD |
|
Bore (in) |
4 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.125 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-6.8 |
|
Compression Ratio |
10.5 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
377 |
|
Piston Weight |
383 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Flat Top -6.83cc All 23 Heads 4.000 Bore,3.750 stroke, 6.000 rod 10.3 to 1 comp with a 64cc head (CP Bullets BC1025-STD) |
|---|---|
| Brands | CP Carrillo |
| 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 BC1025-STD pistons?
The BC1025-STD pistons are designed to achieve a compression ratio of approximately 10.5:1 when used with a 64cc cylinder head. However, actual compression may vary based on factors such as head gasket thickness and combustion chamber modifications.
What are the specific machining requirements for the BC1025-STD pistons?
When installing the BC1025-STD pistons, ensure that the bore clearance is set correctly according to your engine's specifications. Additionally, verify that the ring gaps are appropriately set, as these pistons come with a 1.5 x 1.5 x 3.0mm ring thickness.
Can the BC1025-STD pistons be used with any Small Block Chevy head?
The BC1025-STD pistons are compatible with all 23-degree Small Block Chevy heads. Ensure that your engine is built to handle the specified compression ratio and that the head's specifications align with the piston design.
What is the weight of the BC1025-STD pistons, and how does it affect engine balance?
The BC1025-STD pistons weigh 383 grams. It's important to consider this weight when balancing the rotating assembly, as it can impact engine performance and reliability, especially at higher RPMs.
What type of valve reliefs do the BC1025-STD pistons have?
The BC1025-STD pistons feature two valve reliefs, which are designed to accommodate typical valve sizes in Small Block Chevy applications. Ensure that your camshaft and valve train components are compatible to avoid interference.
