Small Block Ford 408 ci 4.030 1.290 +5.77cc (CP Bullets BFR6065-030)
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|
Make |
Ford |
|
Engine Type |
Small Block |
|
Part Number |
BFR6065-030 |
|
Bore (in) |
4.03 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6.2 |
|
Comp Height |
1.29 |
|
Head Type |
Most 19 / 20 deg |
|
Head CC |
62 |
|
Dome / Dish Height |
0.25 |
|
Dom/Dish CC |
5.77 |
|
Compression Ratio |
13.6 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.2 x 1.2 x 3.0mm |
|
VR Depth |
-.280 / SP |
|
Cubic Inch |
408 |
|
Piston Weight |
470 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Ford 408 ci 4.030 1.290 +5.77cc (CP Bullets BFR6065-030) |
|---|---|
| Brands | CP Carrillo |
| Engine | Ford V8, Small Block Ford |
| Make | Ford |
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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 BFR6065-030 pistons?
For the BFR6065-030 pistons, a typical bore clearance of 0.0020" to 0.0025" is recommended. However, this can vary based on the specific application and operating conditions, so always consult with your engine builder.
What compression ratio can I expect with the BFR6065-030 pistons?
The BFR6065-030 pistons are designed to achieve a compression ratio of approximately 13.6:1 when used with 62cc cylinder heads. Ensure that your engine's overall setup, including head gasket thickness and combustion chamber volume, is considered for accurate compression calculations.
What type of ring set is compatible with the BFR6065-030 pistons?
The BFR6065-030 pistons use a ring thickness of 1.2 x 1.2 x 3.0mm. It's essential to select a compatible ring set that matches these dimensions and is suitable for your specific application, whether it be for street or race use.
What is the weight of the BFR6065-030 pistons and how does it affect performance?
The BFR6065-030 pistons weigh 470 grams each. While lighter pistons can improve engine response and reduce reciprocating mass, it's crucial to balance them with the rest of the rotating assembly to maintain reliability and performance.
Are there any specific machining requirements for the BFR6065-030 pistons?
Yes, the BFR6065-030 pistons may require specific machining for proper fitment, including ensuring the correct bore size and setting the appropriate ring gaps. Always consult with your engine builder for precise machining needs based on your engine's specifications.
