Chevy LS3 Dish -27.4cc All std 15 deg/ L92 4.070 bore, 4.000 stroke, 6.125 rod 9.1 to 1 Comp with 66cc head (CP Bullets BLS1115-005)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1115-005 |
|
Bore (in) |
4.07 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.11 |
|
Head Type |
Std 15 deg/ L92 |
|
Head CC |
66 |
|
Dome / Dish Height |
0.18 |
|
Dom/Dish CC |
-27.4 |
|
Compression Ratio |
9 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.200 / SP |
|
Cubic Inch |
416 |
|
Piston Weight |
423 |
|
Style |
Dish |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy LS3 Dish -27.4cc All std 15 deg/ L92 4.070 bore, 4.000 stroke, 6.125 rod 9.1 to 1 Comp with 66cc head (CP Bullets BLS1115-005) |
|---|---|
| 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 compression ratio for the BLS1115-005 pistons with a 66cc head?
The BLS1115-005 pistons provide a compression ratio of 9.1 to 1 when used with a 66cc head. This ratio is suitable for a range of performance applications but ensure that your engine is properly tuned for optimal performance.
What are the recommended bore and stroke specifications for the BLS1115-005 pistons?
The BLS1115-005 pistons are designed for a 4.070-inch bore and a 4.000-inch stroke. It is crucial to maintain these specifications for proper fitment and performance.
What is the weight of the BLS1115-005 pistons, and how does it affect engine performance?
Each BLS1115-005 piston weighs 423 grams. Lighter pistons can improve engine response and reduce reciprocating mass, but ensure that your engine's balance and overall assembly are considered during installation.
Do the BLS1115-005 pistons require any specific machining or clearances?
Yes, the BLS1115-005 pistons may require specific bore clearances and ring gap settings as determined by your engine builder. Proper machining is essential to ensure optimal performance and reliability.
What type of valve reliefs do the BLS1115-005 pistons feature?
The BLS1115-005 pistons feature two valve reliefs, which are designed to accommodate standard LS valve sizes. Ensure that your cylinder heads are compatible to avoid any interference.
