Big Block Chevy -2.9cc Flat Top 4.310 bore 4.250 stroke 6.385 rod, 8.5 to 1 with 118cc head (CP Bullets BBC5010-060)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBC5010-060 |
|
Bore (in) |
4.31 |
|
Stroke (in) |
4.25 |
|
Rod Length (in) |
6.385 |
|
Comp Height |
1.275 |
|
Head Type |
24 OC |
|
Head CC |
118 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-2.9 |
|
Compression Ratio |
8.5 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
1/16 x 1/16 x 3/16 in. |
|
VR Depth |
-0.29 |
|
Cubic Inch |
496 |
|
Piston Weight |
584 |
|
Style |
FT |
|
Valve Reliefs |
1 VR with Slant |
|
Gas Port |
No |
| Product Name | Big Block Chevy -2.9cc Flat Top 4.310 bore 4.250 stroke 6.385 rod, 8.5 to 1 with 118cc head (CP Bullets BBC5010-060) |
|---|---|
| Brands | CP Carrillo |
| Engine | Big Block Chev |
| 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 BBC5010-060 pistons?
For the BBC5010-060 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary depending on the specific application and engine builder preferences. Always ensure to check the manufacturer's specifications and adjust based on your engine's operating conditions.
What compression ratio can I expect with the BBC5010-060 pistons?
The BBC5010-060 pistons are designed to provide a compression ratio of 8.5:1 when used with a 118cc cylinder head. Keep in mind that actual compression can vary based on factors like head gasket thickness and combustion chamber modifications.
What is the weight of the BBC5010-060 pistons and how does it affect performance?
The BBC5010-060 pistons weigh 584 grams each. While lighter pistons can reduce reciprocating mass and improve engine response, it's essential to balance them with the rest of the rotating assembly to maintain reliability and performance.
What type of valve reliefs do the BBC5010-060 pistons feature?
The BBC5010-060 pistons feature a single valve relief with a slant design. This allows for adequate clearance with typical valve sizes in Big Block Chevy applications, but always verify clearance during assembly to prevent interference.
Are the BBC5010-060 pistons suitable for high-performance applications?
Yes, the BBC5010-060 pistons are designed for high-performance applications, particularly in Big Block Chevy engines. However, ensure proper tuning, fuel quality, and engine assembly practices to achieve optimal performance and reliability.
