Big Block Chevy tall deck -3.4cc Flat Top 4.600 Bore 4.500 stroke 6.700 rod, 10.25 to 1 with 118cc head (CP Bullets BBC5325-100)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBC5325-100 |
|
Bore (in) |
4.6 |
|
Stroke (in) |
4.5 |
|
Rod Length (in) |
6.7 |
|
Comp Height |
1.25 |
|
Head Type |
24 OC |
|
Head CC |
118 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-3.4 |
|
Compression Ratio |
10.3 |
|
Pin |
.990 x 2.930 |
|
Ring Thickness |
1/16 x 1/16 x 3/16 in. |
|
VR Depth |
-0.31 |
|
Cubic Inch |
565 |
|
Piston Weight |
609 |
|
Style |
FT |
|
Valve Reliefs |
1 VR with Slant |
|
Gas Port |
No |
| Product Name | Big Block Chevy tall deck -3.4cc Flat Top 4.600 Bore 4.500 stroke 6.700 rod, 10.25 to 1 with 118cc head (CP Bullets BBC5325-100) |
|---|---|
| Brands | CP Carrillo |
| Engine | Big Block Chev |
| 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 BBC5325-100 pistons?
The BBC5325-100 pistons are designed to achieve a compression ratio of approximately 10.3:1 when used with 118cc cylinder heads. However, actual compression may vary based on the specific engine build and machining tolerances.
What are the specific machining requirements for these pistons?
When installing the BBC5325-100 pistons, ensure that the bore clearance is set correctly according to your engine's specifications. Additionally, ring gaps should be established based on the intended use of the engine, especially if it will see high RPMs or forced induction.
Can I use these pistons with different rod lengths or stroke sizes?
The BBC5325-100 pistons are specifically designed for a 4.500 stroke and 6.700 rod length. Using different rod lengths or stroke sizes may result in improper fitment and could affect engine performance and reliability.
What is the weight of the BBC5325-100 pistons, and how does it affect performance?
The BBC5325-100 pistons weigh 609 grams each. While lighter pistons can improve engine response and reduce reciprocating mass, it's essential to balance the entire rotating assembly for optimal performance and reliability.
What type of valve reliefs do the BBC5325-100 pistons have?
The BBC5325-100 pistons feature a single valve relief with a slant design. This configuration is intended to provide clearance for the valves while maintaining strength and performance characteristics.
