Big Block 24° N/A BB3 Xtra / Head Hunter 4.560 bore, 4.250 stroke, 6.385 rod, 1.275 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5334-060)
Big Block 24° N/A BB3 Xtra / Head Hunter 4.560 bore, 4.375 stroke, 6.385 rod, 1.220 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5332-060)
Big Block 24° N/A BB3 Xtra / Head Hunter 4.560 bore, 4.250 stroke, 6.535 rod, 1.120 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5331-060)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBCRE5331-060 |
|
Bore (in) |
4.56 |
|
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 |
13.9 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
.043 x .043 x 3.0 |
|
VR Depth |
-.310 / .100 |
|
Cubic Inch |
555 |
|
Piston Weight |
642 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Big Block 24° N/A BB3 Xtra / Head Hunter 4.560 bore, 4.250 stroke, 6.535 rod, 1.120 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5331-060) |
|---|---|
| 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 BBCRE5331-060 pistons?
For the BBCRE5331-060 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. This ensures proper thermal expansion and prevents piston slap during operation. Always verify with your specific engine build requirements.
What compression ratio can I expect with the BBCRE5331-060 pistons?
The BBCRE5331-060 pistons provide a compression ratio of 13.9:1 when used with 118cc heads. This high compression is suitable for racing applications but requires high-octane fuel and proper tuning to avoid detonation.
What type of ring gaps should I use for the BBCRE5331-060 pistons?
For the BBCRE5331-060 pistons, set the top ring gap around 0.020" to 0.022" and the second ring gap around 0.018" to 0.020". The oil ring gap should be set to approximately 0.010" to 0.012". Adjust according to your specific application and operating conditions.
Do I need to machine the piston for valve clearance with the BBCRE5331-060?
The BBCRE5331-060 pistons come with two valve reliefs, but depending on your camshaft profile and head design, additional machining may be required to ensure adequate valve clearance. Always check clearances during assembly.
What is the weight of the BBCRE5331-060 pistons and how does it affect performance?
The BBCRE5331-060 pistons weigh 642 grams each. While this weight is typical for high-performance applications, it can impact engine balance and responsiveness. Consider this in conjunction with your rotating assembly for optimal performance.
