BH64-950-010 Gen3 Dodge Hemi 4.100" bore, 3.720" stroke, 6.200" rod, .927" pin. '11-Present 6.4 head, -8.1cc, 9.5:1 comp (CP Bullets BH64-950-010)
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)
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)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBCRE5334-STD |
|
Bore (in) |
4.5 |
|
Stroke (in) |
4.25 |
|
Rod Length (in) |
6.385 |
|
Comp Height |
1.275 |
|
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 |
1.0 x 1.0 x 3.0mm |
|
VR Depth |
-.310 / .100 |
|
Cubic Inch |
541 |
|
Piston Weight |
663 |
|
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, 6.385 rod, 1.275 CH 46.9cc dome .043mm, .043mm, 3mm rings (CP Bullets BBCRE5334-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 BBCRE5334-STD pistons?
For the BBCRE5334-STD pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. This ensures proper thermal expansion and reduces the risk of piston scuffing.
What compression ratio can I expect with the BBCRE5334-STD pistons?
The BBCRE5334-STD pistons are designed to achieve a compression ratio of approximately 13.7:1 when used with 118cc cylinder heads. Ensure that your engine's overall setup supports this compression for optimal performance.
Do the BBCRE5334-STD pistons require any specific machining?
Yes, the BBCRE5334-STD pistons may require the cylinder bores to be honed to achieve the correct clearance. Additionally, ensure that the ring lands are properly sized and that the piston-to-wall clearance is within specifications.
What type of fuel is recommended for use with the BBCRE5334-STD pistons?
Due to the high compression ratio of 13.7:1, it is recommended to use high-octane fuel, such as 98 RON or higher, to prevent detonation and ensure reliable engine performance.
What is the weight of the BBCRE5334-STD pistons and how does it affect performance?
The BBCRE5334-STD pistons weigh 663 grams each. This weight can influence engine balance and performance, particularly at high RPMs. It's advisable to match the piston weight with the rest of the rotating assembly for optimal performance.
