Chevy 6.0L LS All 15°/L92 Bore 4.000 CH 1.331 Stroke 3.622 Rod 6.098 Flat Head 68cc (CP Bullets BLS1155-STD)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1155-STD |
|
Bore (in) |
4 |
|
Stroke (in) |
3.622 |
|
Rod Length (in) |
6.098 |
|
Comp Height |
1.331 |
|
Head Type |
Std 15 deg/ L92 |
|
Head CC |
68 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-3.8 |
|
Compression Ratio |
10 |
|
Pin |
.945 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.200 / SP |
|
Cubic Inch |
364 |
|
Piston Weight |
475 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy 6.0L LS All 15°/L92 Bore 4.000 CH 1.331 Stroke 3.622 Rod 6.098 Flat Head 68cc (CP Bullets BLS1155-STD) |
|---|---|
| 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 BLS1155-STD pistons?
For the BLS1155-STD pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, final clearance should be determined based on your specific engine build and the materials used.
What compression ratio can I expect with the BLS1155-STD pistons and a 68cc head?
The BLS1155-STD pistons are designed to achieve a compression ratio of approximately 10:1 when used with a 68cc combustion chamber. Keep in mind that actual compression may vary based on deck height and gasket thickness.
What type of ring gaps should I consider for the BLS1155-STD pistons?
For the BLS1155-STD pistons, ring gaps should be set according to the intended use of the engine. A general guideline is to set the top ring gap at 0.020" to 0.022" and the second ring gap at 0.018" to 0.020", but always consider your specific application and operating conditions.
Do I need to perform any specific machining on the BLS1155-STD pistons?
The BLS1155-STD pistons may require specific machining such as honing the cylinder bores to achieve the correct clearance. Always consult with your engine builder to ensure proper fitment and performance.
What is the weight of the BLS1155-STD pistons and how does it affect performance?
The BLS1155-STD pistons weigh 475 grams each. Lighter pistons can improve engine responsiveness and reduce reciprocating mass, but ensure that your engine's balance is maintained with the full rotating assembly.
