Big Block 24° N/A BB3 Xtra / Head Hunter 4.500 bore, 4.250 stroke, 6.385 rod, 1.275 CH 46.9cc dome .043mm, .043mm, 3mm rings (CP Bullets BBCRE5334-STD)
Big Block 24° N/A BB3 Xtra / Head Hunter 4.500 bore, 4.375 stroke, 6.385 rod, 1.220 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5332-STD)
Big Block 24° N/A BB3 Xtra / Head Hunter 4.500 bore, 4.250 stroke, 6.535 rod, 1.120 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5331-STD)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBCRE5331-STD |
|
Bore (in) |
4.5 |
|
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 |
13.7 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
.043 x .043 x 3.0 |
|
VR Depth |
-.310 / .100 |
|
Cubic Inch |
541 |
|
Piston Weight |
624 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Big Block 24° N/A BB3 Xtra / Head Hunter 4.500 bore, 4.250 stroke, 6.535 rod, 1.120 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5331-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 compression ratio for the BBCRE5331-STD pistons?
The BBCRE5331-STD pistons are designed to achieve a compression ratio of approximately 13.7:1 when used with a 118cc cylinder head. Ensure that your engine's overall setup supports this compression for optimal performance.
What are the specific ring thicknesses for the BBCRE5331-STD pistons?
The BBCRE5331-STD pistons come with a ring thickness of .043 x .043 x 3.0 mm. It's crucial to set the ring gaps according to your engine's specifications and intended use.
What is the weight of the BBCRE5331-STD pistons, and how does it affect engine balance?
Each BBCRE5331-STD piston weighs 624 grams. When building your engine, consider the total rotating assembly weight for proper balance, especially if you're aiming for high RPM performance.
Do the BBCRE5331-STD pistons have gas ports, and what is their purpose?
Yes, the BBCRE5331-STD pistons are equipped with gas ports. These ports help improve ring seal and reduce cylinder pressure loss, which can enhance performance, particularly in high-power applications.
What machining considerations should I keep in mind when using the BBCRE5331-STD pistons?
When installing the BBCRE5331-STD pistons, ensure that the bore clearance is set correctly and that the ring gaps are adjusted to suit your specific engine build. Additionally, verify that the piston-to-valve clearance is adequate, especially with the two valve reliefs present.
