Big Block Chevy 509 ci 4.500 1.245 CH +46.9cc (CP Bullets BBCRE5333-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBCRE5333-STD |
|
Bore (in) |
4.5 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6.535 |
|
Comp Height |
1.245 |
|
Head Type |
BB3 Xtra / Head Hunter |
|
Head CC |
118 |
|
Dome / Dish Height |
0.65 |
|
Dom/Dish CC |
46.9 |
|
Compression Ratio |
13.1 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
1.0 x 1.0 x 3.0mm |
|
VR Depth |
-.310 / .100 |
|
Cubic Inch |
509 |
|
Piston Weight |
654 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Big Block Chevy 509 ci 4.500 1.245 CH +46.9cc (CP Bullets BBCRE5333-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 BBCRE5333-STD pistons?
For the BBCRE5333-STD pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on your specific engine build and operating conditions, so always consult with your engine builder for the best fit.
What compression ratio can I expect with the BBCRE5333-STD pistons?
The BBCRE5333-STD pistons are designed to achieve a compression ratio of approximately 13.1:1 when used with a 118cc cylinder head. Keep in mind that actual compression may vary based on factors like head gasket thickness and combustion chamber modifications.
What type of ring gaps should I set for the BBCRE5333-STD pistons?
For the BBCRE5333-STD pistons, a general guideline is to set the top ring gap at 0.020" to 0.022" and the second ring gap at 0.018" to 0.020". However, you should adjust these gaps based on your specific application, boost levels, and RPM range.
What is the significance of the gas ports in the BBCRE5333-STD pistons?
The gas ports in the BBCRE5333-STD pistons help improve ring seal and reduce blow-by by allowing combustion gases to pressurise the ring grooves. This feature is particularly beneficial in high-performance applications where optimal sealing is critical.
What is the weight of the BBCRE5333-STD pistons and how does it affect performance?
The BBCRE5333-STD pistons weigh 654 grams each. While lighter pistons can improve engine response and reduce stress on the rotating assembly, it's essential to balance them with the rest of the rotating components to maintain reliability and performance.
