Chevy LS2 Dish -13cc All std 15 deg/ L92 4.005 bore, 3.622 stroke, 6.098 rod 9.1 to 1 Comp with 68cc head (CP Bullets BLS1141-005)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1141-005 |
|
Bore (in) |
4.005 |
|
Stroke (in) |
3.622 |
|
Rod Length (in) |
6.095 |
|
Comp Height |
1.335 |
|
Head Type |
Std 15 deg/ L92 |
|
Head CC |
68 |
|
Dome / Dish Height |
-0.082 |
|
Dom/Dish CC |
-13 |
|
Compression Ratio |
9 |
|
Pin |
.945 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.200 / -.155 |
|
Cubic Inch |
365 |
|
Piston Weight |
462 |
|
Style |
Dish |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy LS2 Dish -13cc All std 15 deg/ L92 4.005 bore, 3.622 stroke, 6.098 rod 9.1 to 1 Comp with 68cc head (CP Bullets BLS1141-005) |
|---|---|
| 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 BLS1141-005 pistons?
The BLS1141-005 pistons are designed to achieve a compression ratio of 9.1:1 when used with a 68cc head. Ensure that your engine's specifications align with this setup for optimal performance.
What machining considerations should I keep in mind when using these pistons?
When installing the BLS1141-005 pistons, ensure that the bore clearance is set correctly, typically around 0.0030" to 0.0050" depending on your application. Additionally, check that the ring gaps are set according to your engine's intended use and operating conditions.
What is the weight of the BLS1141-005 pistons and how does it affect performance?
The BLS1141-005 pistons weigh 462 grams each. Lighter pistons can improve engine response and reduce reciprocating mass, but it's crucial to balance the entire rotating assembly to maintain reliability and performance.
Can I use the BLS1141-005 pistons with any LS engine configuration?
The BLS1141-005 pistons are specifically designed for the LS series engines, particularly those with a 4.005" bore and a 3.622" stroke. Ensure compatibility with your specific LS engine variant before installation.
What type of valve reliefs do the BLS1141-005 pistons have?
The BLS1141-005 pistons feature two valve reliefs, which are designed to accommodate standard LS valve sizes. Always verify clearance with your specific cylinder head and camshaft combination to prevent interference.
