Chevy LS2 Flat top -2.7cc All std 15 deg/ L92 4.030 bore, 3.622 stroke, 6.125 rod 10.2 to 1 Comp with 68cc head (CP Bullets BLS1135-030)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1135-030 |
|
Bore (in) |
4.03 |
|
Stroke (in) |
3.622 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.3 |
|
Head Type |
Std 15 deg/ L92 |
|
Head CC |
68 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-2.7 |
|
Compression Ratio |
10.2 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.175 / SP |
|
Cubic Inch |
370 |
|
Piston Weight |
479 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy LS2 Flat top -2.7cc All std 15 deg/ L92 4.030 bore, 3.622 stroke, 6.125 rod 10.2 to 1 Comp with 68cc head (CP Bullets BLS1135-030) |
|---|---|
| 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 and stroke for the BLS1135-030 pistons?
The BLS1135-030 pistons are designed for a 4.030 inch bore and a 3.622 inch stroke, making them suitable for a 370 cubic inch LS engine.
What compression ratio can I expect with the BLS1135-030 pistons and 68cc heads?
When using the BLS1135-030 pistons with 68cc cylinder heads, you can achieve a compression ratio of approximately 10.2:1, assuming standard assembly and clearance practices.
What is the pin size for the BLS1135-030 pistons?
The BLS1135-030 pistons feature a pin size of .927 inches in diameter and a length of 2.250 inches.
What type of valve reliefs do the BLS1135-030 pistons have?
The BLS1135-030 pistons come with two valve reliefs, allowing for compatibility with various LS cylinder heads while maintaining clearance for the valves.
What is the weight of the BLS1135-030 pistons?
Each BLS1135-030 piston weighs approximately 479 grams, which is important to consider for balancing the rotating assembly.
