Chevy LS2 Flat top -2.7cc All std 15 deg/ L92 4.065 bore, 4.125 stroke, 6.125 rod 11.7 to 1 Comp with 68cc head (CP Bullets BLS1132-065)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1132-065 |
|
Bore (in) |
4.065 |
|
Stroke (in) |
4.125 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.05 |
|
Head Type |
Std 15 deg/ L92 |
|
Head CC |
68 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-2.7 |
|
Compression Ratio |
11.7 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.175 / SP |
|
Cubic Inch |
428 |
|
Piston Weight |
449 |
|
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, 4.125 stroke, 6.125 rod 11.7 to 1 Comp with 68cc head (CP Bullets BLS1132-065) |
|---|---|
| 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 compression ratio for the BLS1132-065 pistons?
The BLS1132-065 pistons are designed for a compression ratio of 11.7:1 when used with a 68cc head. Ensure that your engine's specifications align with this ratio for optimal performance.
What bore and stroke specifications are compatible with the BLS1132-065 pistons?
These pistons are compatible with a bore of 4.065 inches and a stroke of 4.125 inches. It's crucial to maintain these dimensions for proper fitment and performance.
What type of valve reliefs do the BLS1132-065 pistons have?
The BLS1132-065 pistons feature two valve reliefs. Ensure that your cylinder heads are compatible with this design to avoid interference.
What is the weight of the BLS1132-065 pistons?
The BLS1132-065 pistons weigh 449 grams each. This weight is important for balancing the rotating assembly, so consider it when building your engine.
What is the pin size for the BLS1132-065 pistons?
The BLS1132-065 pistons use a pin size of .927 inches by 2.250 inches. Ensure your conrods are compatible with this pin size for proper fitment.
