Chevy LS2 Flat top -2.7cc All std 15 deg/ L92 4.065 bore, 3.622 stroke, 6.125 rod 10.4 to 1 Comp with 68cc head (CP Bullets BLS1135-065)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1135-065 |
|
Bore (in) |
4.065 |
|
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 |
10.3 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.175 / SP |
|
Cubic Inch |
376 |
|
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 4.065 bore, 3.622 stroke, 6.125 rod 10.4 to 1 Comp with 68cc head (CP Bullets BLS1135-065) |
|---|---|
| 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 BLS1135-065 pistons?
The BLS1135-065 pistons are designed for a 4.065 inch bore and a 3.622 inch stroke, making them suitable for a 376 cubic inch LS engine.
What compression ratio can I expect with these pistons and a 68cc head?
With a 68cc head, these pistons will yield a compression ratio of approximately 10.4:1, which is ideal for performance applications.
What type of valve reliefs do the BLS1135-065 pistons have?
These pistons feature two valve reliefs, allowing for compatibility with various LS cylinder heads while maintaining clearance for the valves.
What is the weight of the BLS1135-065 pistons?
Each BLS1135-065 piston weighs approximately 479 grams, which is suitable for high-performance applications while ensuring a good balance in the rotating assembly.
What is the pin size and length for the BLS1135-065 pistons?
The BLS1135-065 pistons use a pin size of .927 inches and a pin length of 2.250 inches, which is standard for many LS applications.
