Chevy LS2 Flat Top -3.8cc AFR LS3 12° 4.030 bore 1.300 CH (CP Bullets BLS1150-030)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1150-030 |
|
Bore (in) |
4.03 |
|
Stroke (in) |
3.622 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.3 |
|
Head Type |
AFR LS3 12 * |
|
Head CC |
68 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-3.8 |
|
Compression Ratio |
10.1 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.200 / SP |
|
Cubic Inch |
370 |
|
Piston Weight |
493 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy LS2 Flat Top -3.8cc AFR LS3 12° 4.030 bore 1.300 CH (CP Bullets BLS1150-030) |
|---|---|
| Brands | CP Carrillo |
| Engine | GM / LS |
| Make | Chevrolet, GM, Holden, LS Chev |
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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 BLS1150-030 pistons?
For the BLS1150-030 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, always verify with your specific engine build and application requirements.
What compression ratio can I expect with the BLS1150-030 pistons?
The BLS1150-030 pistons provide a compression ratio of approximately 10.1:1 when used with AFR LS3 12° heads with a 68cc chamber. Ensure your engine's overall setup supports this ratio for optimal performance.
What type of ring gaps should I set for the BLS1150-030 pistons?
For the BLS1150-030 pistons, ring gaps should be set according to your specific application, but a common starting point is 0.020" for the top rings and 0.022" for the second rings. Adjust based on boost levels and RPM.
Are there any specific machining requirements for the BLS1150-030 pistons?
Yes, the BLS1150-030 pistons may require careful attention to bore sizing and honing to ensure proper fitment. Always check the piston-to-wall clearance and ensure the cylinder bores are within specification.
What is the weight of the BLS1150-030 pistons, and how does it affect my engine build?
The BLS1150-030 pistons weigh 493 grams each. This weight can influence engine balance and reciprocating mass, so consider it when designing your rotating assembly for performance and reliability.
