Big Block Ford Flat Top -6cc Cobra Jet/ Edel 4.440 bore, 4.300 stroke, 6.800 rod 12.5 to 1 with 75cc head (CP Bullets BBF6205-080)
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|
Make |
Ford |
|
Engine Type |
Big Block |
|
Part Number |
BBF6205-080 |
|
Bore (in) |
4.44 |
|
Stroke (in) |
4.3 |
|
Rod Length (in) |
6.8 |
|
Comp Height |
1.35 |
|
Head Type |
460 Iron |
|
Head CC |
75 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-6 |
|
Compression Ratio |
12.3 |
|
Pin |
.990 x 2.930 |
|
Ring Thickness |
1/16 x 1/16 x 3/16 in. |
|
VR Depth |
-.300 / -.075 |
|
Cubic Inch |
533 |
|
Piston Weight |
561 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Big Block Ford Flat Top -6cc Cobra Jet/ Edel 4.440 bore, 4.300 stroke, 6.800 rod 12.5 to 1 with 75cc head (CP Bullets BBF6205-080) |
|---|---|
| Brands | CP Carrillo |
| Engine | Big Block Ford |
| Make | Ford |
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 BBF6205-080 pistons?
For the BBF6205-080 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, final clearance should be determined by the engine builder based on specific application and tolerances.
What compression ratio can I expect with the BBF6205-080 pistons and 75cc heads?
These pistons provide a compression ratio of approximately 12.3:1 when used with 75cc heads. Ensure that your fuel quality and tuning are suitable for high compression applications.
What type of ring gaps should I set for the BBF6205-080 pistons?
For the BBF6205-080 pistons, ring gaps should be set according to the intended use. A common starting point for performance applications is around 0.004" per inch of bore, but adjustments may be necessary based on boost levels and RPM.
Are there any specific machining requirements for the BBF6205-080 pistons?
Yes, the BBF6205-080 pistons may require careful attention to bore sizing and honing to ensure proper fitment. It's crucial to check for any variations in bore size and adjust accordingly.
What is the weight of the BBF6205-080 pistons and how does it affect performance?
The BBF6205-080 pistons weigh 561 grams. While this weight is suitable for high-performance applications, it's important to consider the overall rotating assembly balance to maintain engine reliability and performance.
