Small Block Chevy Flat Top -6.83cc All 23 Heads 4.060 Bore,3.750 stroke, 6.000 rod 10.6 to 1 comp with a 64cc head (CP Bullets BC1025-060)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1025-060 |
|
Bore (in) |
4.06 |
|
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 |
10.6 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
388 |
|
Piston Weight |
407 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Flat Top -6.83cc All 23 Heads 4.060 Bore,3.750 stroke, 6.000 rod 10.6 to 1 comp with a 64cc head (CP Bullets BC1025-060) |
|---|---|
| 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 compression ratio can I expect with the BC1025-060 pistons?
The BC1025-060 pistons provide a compression ratio of 10.6:1 when used with a 64cc cylinder head. However, actual compression may vary based on factors such as head gasket thickness and chamber modifications.
What is the recommended bore clearance for these pistons?
For the BC1025-060 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. Always verify with your engine builder to ensure proper fitment based on your specific application.
What type of valve reliefs do the BC1025-060 pistons have?
The BC1025-060 pistons feature two valve reliefs, designed to accommodate common camshaft profiles in Small Block Chevy applications. Ensure your camshaft specifications align with these reliefs to prevent interference.
What is the weight of the BC1025-060 pistons, and how does it affect performance?
The BC1025-060 pistons weigh 407 grams each. While lighter pistons can improve engine response and reduce reciprocating mass, it's essential to balance them with the rest of the rotating assembly for optimal performance.
Are there any specific machining requirements for the BC1025-060 pistons?
Yes, the BC1025-060 pistons may require specific bore honing to achieve the correct clearance. Additionally, ensure that the ring grooves are properly machined to accommodate the 1.5 x 1.5 x 3.0mm rings for optimal sealing.
