Ford Flat top 4.6L Sock 3V 3.572 BORE, 3.543 Stroke, 5.932 rod 53cc head 10.4 to 1 comp (CP Bullets BF9856-020)
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|
Make |
Ford |
|
Engine Type |
3V Power Adder Modular, Dish |
|
Part Number |
BF9856-020 |
|
Bore (in) |
3.572 |
|
Stroke (in) |
3.543 |
|
Rod Length (in) |
5.933 |
|
Comp Height |
1.22 |
|
Head Type |
3V |
|
Head CC |
53 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-1.07 |
|
Compression Ratio |
10.4 |
|
Pin |
.866 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-0.09 |
|
Cubic Inch |
284 |
|
Piston Weight |
376 |
|
Style |
FT |
|
Valve Reliefs |
1 VR |
|
Gas Port |
No |
| Product Name | Ford Flat top 4.6L Sock 3V 3.572 BORE, 3.543 Stroke, 5.932 rod 53cc head 10.4 to 1 comp (CP Bullets BF9856-020) |
|---|---|
| Brands | CP Carrillo |
| Engine | Ford V8 |
| 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 BF9856-020 pistons?
For the BF9856-020 pistons, a typical bore clearance of 0.0025" to 0.0030" is recommended. However, it's essential to verify this with your specific engine build and ensure proper fitment based on your machining tolerances.
What compression ratio can I expect with the BF9856-020 pistons?
The BF9856-020 pistons are designed to achieve a compression ratio of 10.4:1 when used with a 53cc head. Keep in mind that actual compression may vary based on head gasket thickness and other factors in your engine assembly.
What type of ring gaps should I set for the BF9856-020 pistons?
For the BF9856-020 pistons, a common starting point for ring gaps is 0.020" for the top rings and 0.022" for the second rings. Adjustments may be necessary based on your specific application, boost levels, and operating conditions.
What is the weight of the BF9856-020 pistons and how does it affect performance?
The BF9856-020 pistons weigh 376 grams each. While lighter pistons can improve engine response and RPM capabilities, ensure that your engine's rotating assembly is balanced to maintain reliability and performance.
Do the BF9856-020 pistons require any special machining?
Yes, the BF9856-020 pistons may require specific machining for optimal fitment, including checking and potentially honing the bore for proper clearance. Always consult with your engine builder to ensure correct installation.
