Small Block Chevy Dome +5cc All 23 Heads 4.165 Bore,3.750 stroke, 6.000 rod 12.9 to 1 comp with a 64cc head (CP Bullets BC1200-040)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1200-040 |
|
Bore (in) |
4.165 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.125 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
0.235 |
|
Dom/Dish CC |
5.1 |
|
Compression Ratio |
12.9 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
409 |
|
Piston Weight |
452 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dome +5cc All 23 Heads 4.165 Bore,3.750 stroke, 6.000 rod 12.9 to 1 comp with a 64cc head (CP Bullets BC1200-040) |
|---|---|
| Brands | CP Carrillo |
| Make | GM |
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 compression ratio for the BC1200-040 pistons?
The BC1200-040 pistons are designed to achieve a compression ratio of 12.9:1 when used with a 64cc cylinder head. Ensure that all components are compatible and that the engine is properly tuned for optimal performance.
What bore and stroke specifications are these pistons designed for?
These pistons are designed for a bore of 4.165 inches and a stroke of 3.750 inches, making them suitable for a Small Block Chevy engine with a displacement of 409 cubic inches.
What is the weight of the BC1200-040 pistons?
The BC1200-040 pistons weigh 452 grams each. It's important to consider this weight when balancing the rotating assembly for your engine build.
Do the BC1200-040 pistons have valve reliefs?
Yes, the BC1200-040 pistons feature two valve reliefs, which are essential for clearance with the valves during operation, especially at higher RPMs.
What is the dome height of the BC1200-040 pistons?
The dome height of the BC1200-040 pistons is 0.235 inches. This dimension contributes to the overall compression ratio and should be considered when calculating engine specifications.
