Big Block Ford Flat Top -6cc Cobra Jet/ Edel 4.440 bore, 4.140 stroke, 6.800 rod 12.2 to 1 with 75cc head (CP Bullets BBF6200-080)
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|
Make |
Ford |
|
Engine Type |
Big Block |
|
Part Number |
BBF6200-080 |
|
Bore (in) |
4.44 |
|
Stroke (in) |
4.14 |
|
Rod Length (in) |
6.8 |
|
Comp Height |
1.415 |
|
Head Type |
Cobra Jet |
|
Head CC |
75 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-6 |
|
Compression Ratio |
12.1 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
1/16 x 1/16 x 3/16 in. |
|
VR Depth |
-.300 / -.075 |
|
Cubic Inch |
513 |
|
Piston Weight |
591 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Big Block Ford Flat Top -6cc Cobra Jet/ Edel 4.440 bore, 4.140 stroke, 6.800 rod 12.2 to 1 with 75cc head (CP Bullets BBF6200-080) |
|---|---|
| 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 BBF6200-080 pistons?
For the BBF6200-080 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 BBF6200-080 pistons and 75cc heads?
These pistons are designed to achieve a compression ratio of approximately 12.2:1 when used with 75cc Cobra Jet heads. However, actual compression may vary based on final assembly and machining tolerances.
Do I need to modify my cylinder head for valve clearance with these pistons?
Yes, the BBF6200-080 pistons feature two valve reliefs, but you should verify valve clearance during assembly. Depending on your camshaft profile and other components, additional machining may be necessary.
What is the weight of the BBF6200-080 pistons, and how does it affect my engine?
The BBF6200-080 pistons weigh 591 grams each. This weight is suitable for high-performance applications, but keep in mind that lighter pistons can reduce reciprocating mass, potentially improving engine response and RPM capability.
What type of rings should I use with the BBF6200-080 pistons?
The BBF6200-080 pistons come with a ring thickness of 1/16 x 1/16 x 3/16 inches. It's important to select high-quality performance rings that suit your specific application and ensure proper ring gap settings for optimal performance.
