Small Block Ford Flat top 4.6L Sock 2V/4V 3.552 BORE, 3.543 Stroke, 5.932 rod 53cc head 10.3 to 1 comp (CP Bullets BF9821-STD)
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|
Make |
Ford |
|
Engine Type |
4.6L Power Adder |
|
Part Number |
BF9821-STD |
|
Bore (in) |
3.552 |
|
Stroke (in) |
3.543 |
|
Rod Length (in) |
5.933 |
|
Comp Height |
1.22 |
|
Head Type |
Stock 4V |
|
Head CC |
53 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-0.07 |
|
Compression Ratio |
10.3 |
|
Pin |
.866 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
N/A |
|
Cubic Inch |
281 |
|
Piston Weight |
369 |
|
Style |
FT |
|
Valve Reliefs |
None |
|
Gas Port |
No |
| Product Name | Small Block Ford Flat top 4.6L Sock 2V/4V 3.552 BORE, 3.543 Stroke, 5.932 rod 53cc head 10.3 to 1 comp (CP Bullets BF9821-STD) |
|---|---|
| Brands | CP Carrillo |
| Engine | Ford V8 |
| 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 and stroke for the BF9821-STD pistons?
The BF9821-STD pistons are designed for a bore of 3.552 inches and a stroke of 3.543 inches, making them suitable for the 4.6L Ford V8 engine.
What is the compression ratio achieved with the BF9821-STD pistons?
These pistons provide a compression ratio of 10.3:1 when used with stock 4V heads that have a 53cc combustion chamber.
What type of ring thickness do the BF9821-STD pistons use?
The BF9821-STD pistons come with a ring thickness of 1.5mm for the top and second rings, and a 3.0mm oil ring.
Are there any specific machining requirements for the BF9821-STD pistons?
Yes, ensure that the bore clearance is set correctly, as well as the ring gaps, to achieve optimal performance and reliability. Always consult your engine builder for specific machining needs.
What is the weight of the BF9821-STD pistons?
Each BF9821-STD piston weighs approximately 369 grams, which is important to consider for balancing the rotating assembly.
