Big Bock Chevy 557 4.500 Bore 1.220 +46.9cc (CP Bullets BBCRE5319-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBCRE5319-STD |
|
Bore (in) |
4.5 |
|
Stroke (in) |
4.375 |
|
Rod Length (in) |
6.385 |
|
Comp Height |
1.22 |
|
Head Type |
BB3 Xtra / Head Hunter |
|
Head CC |
118 |
|
Dome / Dish Height |
0.65 |
|
Dom/Dish CC |
46.9 |
|
Compression Ratio |
14.5 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
.043 x .043 x 3.0 |
|
VR Depth |
-.310 / .100 |
|
Cubic Inch |
557 |
|
Piston Weight |
682 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Big Bock Chevy 557 4.500 Bore 1.220 +46.9cc (CP Bullets BBCRE5319-STD) |
|---|---|
| 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 bore clearance for the BBCRE5319-STD pistons?
For the BBCRE5319-STD pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, final clearance should be determined by the engine builder based on specific application and tolerances.
What compression ratio can I expect with the BBCRE5319-STD pistons?
The BBCRE5319-STD pistons are designed to achieve a compression ratio of approximately 14.5:1 when used with 118cc heads. Ensure that your engine's overall setup is compatible with this compression for optimal performance.
What type of fuel is recommended for use with the BBCRE5319-STD pistons?
Due to the high compression ratio of 14.5:1, it is recommended to use high-octane fuel, such as 98 RON or higher, to prevent detonation and ensure reliable performance.
What is the weight of the BBCRE5319-STD pistons and how does it affect performance?
The BBCRE5319-STD pistons weigh 682 grams. While this weight is typical for high-performance applications, it's important to consider the overall rotating assembly balance to maintain engine reliability and performance.
Do the BBCRE5319-STD pistons require any special machining?
Yes, the BBCRE5319-STD pistons may require specific machining for the pin bores and ring lands to ensure proper fitment and performance. Always consult with your engine builder for precise machining requirements.
