Chevy 403ci ASCS 4.135 Bore 1.125 CH 8cc Dome Vert Gas Ports - Lefts & Rights (CP Bullets BCRE1221-010)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BCRE1221-010 |
|
Bore (in) |
4.135 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.125 |
|
Head Type |
ASCS |
|
Head CC |
64 |
|
Dome / Dish Height |
0.275 |
|
Dom/Dish CC |
8 |
|
Compression Ratio |
13.5 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.0 x 1.0 x 2.0mm |
|
VR Depth |
-.335 / SP |
|
Cubic Inch |
403 |
|
Piston Weight |
457 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy 403ci ASCS 4.135 Bore 1.125 CH 8cc Dome Vert Gas Ports - Lefts & Rights (CP Bullets BCRE1221-010) |
|---|---|
| Brands | CP Carrillo |
| Engine | Chev |
| Make | GM |
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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 BCRE1221-010 pistons?
The BCRE1221-010 pistons are designed for a compression ratio of 13.5:1 when used with a 64cc ASCS head. Ensure that your engine's setup supports this ratio for optimal performance.
What bore size do the BCRE1221-010 pistons require?
These pistons have a bore size of 4.135 inches. It's crucial to ensure your engine block is machined to this specification for proper fitment.
What type of valve reliefs do the BCRE1221-010 pistons have?
The BCRE1221-010 pistons feature two valve reliefs. This design helps accommodate the valve movement in high-performance applications.
What is the weight of the BCRE1221-010 pistons?
Each BCRE1221-010 piston weighs 457 grams. It's important to consider this weight when balancing your rotating assembly.
What is the pin size for the BCRE1221-010 pistons?
The BCRE1221-010 pistons use a pin size of .927 inches by 2.250 inches. Ensure your connecting rods are compatible with this pin size for proper assembly.
