Big Block 24° N/A BB3 Xtra / Head Hunter 4.610 bore, 4.375 stroke, 6.535 rod, 1.070 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5330-110)
Big Block 24° N/A BB3 Xtra / Head Hunter 4.625 bore, 4.250 stroke, 6.385 rod, 1.275 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5334-125)
Big Block 24° N/A BB3 Xtra / Head Hunter 4.625 bore, 4.250 stroke, 6.385 rod, 1.275 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5333-125)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBCRE5333-125 |
|
Bore (in) |
4.625 |
|
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 |
13.8 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
1.0 x 1.0 x 3.0mm |
|
VR Depth |
-.310 / .100 |
|
Cubic Inch |
538 |
|
Piston Weight |
706 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Big Block 24° N/A BB3 Xtra / Head Hunter 4.625 bore, 4.250 stroke, 6.385 rod, 1.275 CH 46.9cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCRE5333-125) |
|---|---|
| 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 are the recommended bore and stroke specifications for the BBCRE5333-125 pistons?
The BBCRE5333-125 pistons are designed for a bore of 4.625 inches and a stroke of 4 inches, making them suitable for a Big Block Chevrolet engine with those specific dimensions.
What compression ratio can I expect when using the BBCRE5333-125 pistons?
When using the BBCRE5333-125 pistons with a head chamber volume of 118cc, you can expect a compression ratio of approximately 13.8:1. This is ideal for high-performance applications but requires careful tuning and fuel quality considerations.
What is the significance of the gas port feature in the BBCRE5333-125 pistons?
The gas port feature in the BBCRE5333-125 pistons allows for improved ring sealing and better performance under high boost conditions. This is particularly beneficial for applications where maximum power and efficiency are desired.
What are the dimensions of the valve reliefs on the BBCRE5333-125 pistons?
The BBCRE5333-125 pistons come with two valve reliefs, which are designed to accommodate specific Big Block Chevrolet camshaft profiles and valve sizes. Ensure that your camshaft and valve train setup is compatible with these reliefs.
What is the weight of the BBCRE5333-125 pistons and how does it affect performance?
The BBCRE5333-125 pistons weigh 706 grams each. This weight is a consideration for engine balance and overall performance, particularly in high RPM applications where lighter pistons can reduce inertia and improve throttle response.
