Small Block Ford Flat Top -8.7cc All 20 deg., AFR, TFS Twisted 4.125 bore, 4.000 stroke, 6.200 rod 72cc head 10.2 to 1 comp (CP Bullets BF6165-STD)
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|
Make |
Ford |
|
Engine Type |
Small Block |
|
Part Number |
BF6165-STD |
|
Bore (in) |
4.125 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6.2 |
|
Comp Height |
1.28 |
|
Head Type |
AFR/All 20/ Twisted |
|
Head CC |
72 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-8.7 |
|
Compression Ratio |
10.2 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.280 / SP |
|
Cubic Inch |
428 |
|
Piston Weight |
504 |
|
Style |
FT |
|
Valve Reliefs |
3 VR's |
|
Gas Port |
No |
| Product Name | Small Block Ford Flat Top -8.7cc All 20 deg., AFR, TFS Twisted 4.125 bore, 4.000 stroke, 6.200 rod 72cc head 10.2 to 1 comp (CP Bullets BF6165-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 BF6165-STD pistons?
The BF6165-STD pistons are designed for a 4.125-inch bore and a 4.000-inch stroke, making them suitable for a Small Block Ford engine with these specifications.
What is the compression ratio achieved with the BF6165-STD pistons?
These pistons provide a compression ratio of 10.2:1 when used with a 72cc head, such as the AFR or TFS Twisted heads.
What are the specific machining requirements for the BF6165-STD pistons?
Ensure that the engine block is honed to the correct bore clearance for these pistons. Ring gaps should also be set according to the specific application and intended use of the engine.
What is the weight of the BF6165-STD pistons?
The BF6165-STD pistons weigh 504 grams each, which is important to consider for balancing the rotating assembly.
Do the BF6165-STD pistons have valve reliefs, and how many?
Yes, the BF6165-STD pistons feature three valve reliefs, which are necessary for clearance with the valves in high-performance applications.
