Chevy LS2 441ci All 15°/L92 Bore 4.125 CH 1.065 Stroke 4.100 Rod 6.125 CR 9 Dish Head 68cc (CP Bullets BLS1134-125B)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1134-125B |
|
Bore (in) |
4.125 |
|
Stroke (in) |
4.1 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.065 |
|
Head Type |
Std 15 deg/ L92 |
|
Head CC |
68 |
|
Dome / Dish Height |
-0.175 |
|
Dom/Dish CC |
-28.56 |
|
Compression Ratio |
9 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.265 / SP |
|
Cubic Inch |
438 |
|
Piston Weight |
440 |
|
Style |
Dish |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy LS2 441ci All 15°/L92 Bore 4.125 CH 1.065 Stroke 4.100 Rod 6.125 CR 9 Dish Head 68cc (CP Bullets BLS1134-125B) |
|---|---|
| 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 BLS1134-125B pistons?
For the BLS1134-125B pistons, a typical bore clearance of 0.0030" to 0.0035" is advisable. However, final clearance should be determined based on the specific application and the builder's preferences.
What is the compression ratio of the BLS1134-125B pistons with a 68cc head?
The BLS1134-125B pistons provide a compression ratio of 9:1 when used with a 68cc combustion chamber. This ratio is suitable for a variety of performance applications but should be confirmed with the complete engine setup.
Are the BLS1134-125B pistons compatible with standard LS2 rods?
Yes, the BLS1134-125B pistons are designed to work with standard LS2 rods that have a 6.125" length. Ensure proper pin fitment and clearances during assembly.
What type of ring gaps should be set for the BLS1134-125B pistons?
For the BLS1134-125B pistons, ring gaps should be set according to the intended use. Generally, a gap of 0.020" for the top ring and 0.022" for the second ring is a good starting point for performance applications, but adjustments may be necessary based on specific conditions.
What is the weight of the BLS1134-125B pistons, and how does it affect engine performance?
The BLS1134-125B pistons weigh 440 grams each. While lighter pistons can improve throttle response and reduce reciprocating mass, it's essential to balance them with the rest of the rotating assembly for optimal performance.
