Chevy 376ci All LS 15°/L92 4.065 Bore Flat Top (CP Bullets BLS1144-STD)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1144-STD |
|
Bore (in) |
4.065 |
|
Stroke (in) |
3.622 |
|
Rod Length (in) |
6.098 |
|
Comp Height |
1.335 |
|
Head Type |
Std 15 deg/ L92 |
|
Head CC |
68 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-2.7 |
|
Compression Ratio |
10.3 |
|
Pin |
.945 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.175 / SP |
|
Cubic Inch |
376 |
|
Piston Weight |
521 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy 376ci All LS 15°/L92 4.065 Bore Flat Top (CP Bullets BLS1144-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 BLS1144-STD pistons?
For the BLS1144-STD pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this may vary based on your specific engine build and intended use, so always consult with your engine builder for precise specifications.
What compression ratio can I expect with the BLS1144-STD pistons?
The BLS1144-STD pistons provide a compression ratio of 10.3:1 when used with standard 68cc L92 cylinder heads. Ensure that your engine's overall setup, including head gasket thickness and combustion chamber volume, is taken into account for accurate compression calculations.
What is the piston weight of the BLS1144-STD, and how does it affect engine performance?
The BLS1144-STD pistons weigh 521 grams. Lighter pistons can improve engine response and reduce reciprocating mass, but it's crucial to balance them with the rest of the rotating assembly to maintain reliability and performance.
Are there specific machining requirements for the BLS1144-STD pistons?
Yes, the BLS1144-STD pistons may require specific machining for the ring lands and bore to ensure proper fitment and performance. Always check the piston-to-wall clearance and ring gap settings as per your engine's specifications.
What type of pin is used with the BLS1144-STD pistons?
The BLS1144-STD pistons use a pin size of .945" x 2.250". Ensure that your connecting rods are compatible with this pin size for proper fitment and function.
