Big Block 24° N/A BB3 Xtra / Head Hunter 4.530 bore, 4.250 stroke, 6.385 rod, 1.275 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5334-030)
Big Block 24° N/A BB3 Xtra / Head Hunter 4.530 bore, 4.375 stroke, 6.385 rod, 1.220 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5332-030)
Big Block 24° N/A BB3 Xtra / Head Hunter 4.530 bore, 4.250 stroke, 6.535 rod, 1.120 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5331-030)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBCRE5331-030 |
|
Bore (in) |
4.53 |
|
Stroke (in) |
4.25 |
|
Rod Length (in) |
6.535 |
|
Comp Height |
1.12 |
|
Head Type |
BB3 Xtra / Head Hunter |
|
Head CC |
118 |
|
Dome / Dish Height |
0.65 |
|
Dom/Dish CC |
46.9 |
|
Compression Ratio |
13.8 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
.043 x .043 x 3.0 |
|
VR Depth |
-.310 / .100 |
|
Cubic Inch |
548 |
|
Piston Weight |
634 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Big Block 24° N/A BB3 Xtra / Head Hunter 4.530 bore, 4.250 stroke, 6.535 rod, 1.120 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5331-030) |
|---|---|
| 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 BBCRE5331-030 pistons?
For the BBCRE5331-030 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on the specific application and operating conditions. Always consult with your engine builder for precise specifications.
What type of fuel should be used with the 13.8 compression ratio of these pistons?
With a compression ratio of 13.8:1, it is advisable to use high-octane fuel, typically 98 RON or higher, to prevent detonation. Ensure your engine is tuned correctly to match the fuel quality for optimal performance.
Do I need to machine the piston ring grooves for the BBCRE5331-030 pistons?
The piston ring grooves on the BBCRE5331-030 are designed for standard ring thicknesses of .043" x .043" x 3.0mm. However, you should verify the fitment and ensure proper clearance during assembly, as machining may be necessary depending on your specific engine setup.
What is the significance of the gas ports in the BBCRE5331-030 pistons?
The gas ports in the BBCRE5331-030 pistons help improve ring seal and reduce blow-by by allowing combustion gases to pressurise the ring area. This feature is particularly beneficial in high-performance applications where optimal sealing is critical.
What is the maximum RPM these pistons can handle?
While the BBCRE5331-030 pistons are designed for high-performance applications, the maximum RPM they can handle will depend on several factors including the overall engine build, tuning, and component quality. Typically, they are suitable for applications up to 7,000 RPM, but always consult with your engine builder for specific limits.
