Small Block Ford Flat Top -8.7cc All 20 deg. TFS Twisted 4.030 bore, 3.250 stroke, 5.400 rod 60cc head 9.4 to 1 comp (CP Bullets BF6020-030)
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|
Make |
Ford |
|
Engine Type |
Small Block |
|
Part Number |
BF6020-030 |
|
Bore (in) |
4.03 |
|
Stroke (in) |
3.25 |
|
Rod Length (in) |
5.4 |
|
Comp Height |
1.165 |
|
Head Type |
STD/ TFS Twisted |
|
Head CC |
60 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-8.7 |
|
Compression Ratio |
9.4 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.280 / SP |
|
Cubic Inch |
332 |
|
Piston Weight |
438 |
|
Style |
FT |
|
Valve Reliefs |
3 VR's |
|
Gas Port |
No |
| Product Name | Small Block Ford Flat Top -8.7cc All 20 deg. TFS Twisted 4.030 bore, 3.250 stroke, 5.400 rod 60cc head 9.4 to 1 comp (CP Bullets BF6020-030) |
|---|---|
| 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 BF6020-030 pistons?
For the BF6020-030 pistons, a typical bore clearance is around 0.0030" to 0.0035". However, it's crucial to confirm this with your specific engine build and intended use, as clearances can vary based on factors like temperature and operating conditions.
What compression ratio can I expect with the BF6020-030 pistons and a 60cc head?
The BF6020-030 pistons are designed to achieve a compression ratio of 9.4:1 when used with a 60cc head. Ensure that your engine is properly tuned and that fuel quality is suitable for this compression level to maintain reliability.
What are the valve relief specifications for the BF6020-030 pistons?
The BF6020-030 pistons feature three valve reliefs. When installing, ensure that the reliefs are adequately sized for your specific camshaft profile to prevent any interference with the valves.
What is the weight of the BF6020-030 pistons, and how does it affect performance?
The BF6020-030 pistons weigh 438 grams each. While lighter pistons can improve engine response and reduce reciprocating mass, it's essential to balance them with the rest of the rotating assembly to avoid vibrations and ensure smooth operation.
Are there any specific machining requirements for the BF6020-030 pistons?
Yes, the BF6020-030 pistons may require specific machining for proper fitment, including checking and possibly honing the bore for correct clearance. Always consult with your engine builder for the best practices tailored to your setup.
