Chevy LS3 Dish -8.6cc All std 15 deg/ L92 4.075 bore, 4.000 stroke, 6.125 rod 10.6 to 1 Comp with 70cc head (CP Bullets BLS1137-010)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1137-010 |
|
Bore (in) |
4.075 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.115 |
|
Head Type |
Std 15 deg/ L92 |
|
Head CC |
70 |
|
Dome / Dish Height |
-0.045 |
|
Dom/Dish CC |
-8.6 |
|
Compression Ratio |
10.6 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.200 / SP |
|
Cubic Inch |
417 |
|
Piston Weight |
455 |
|
Style |
Dish |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy LS3 Dish -8.6cc All std 15 deg/ L92 4.075 bore, 4.000 stroke, 6.125 rod 10.6 to 1 Comp with 70cc head (CP Bullets BLS1137-010) |
|---|---|
| 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 BLS1137-010 pistons?
The BLS1137-010 pistons are designed to achieve a compression ratio of 10.6:1 when used with a 70cc cylinder head. Ensure that your engine's specifications align with this setup for optimal performance.
What bore and stroke specifications are compatible with the BLS1137-010 pistons?
These pistons are compatible with a 4.075-inch bore and a 4.000-inch stroke. It's crucial to confirm that your engine block meets these dimensions before installation.
What is the piston weight for the BLS1137-010, and how does it affect performance?
The BLS1137-010 pistons weigh 455 grams. Lighter pistons can improve engine response and reduce reciprocating mass, but ensure that your engine's balance and tuning are appropriately adjusted to accommodate this weight.
What type of valve reliefs do the BLS1137-010 pistons have?
The BLS1137-010 pistons feature two valve reliefs, which are designed to provide clearance for the valves during operation. Proper fitment with your cylinder heads is essential to avoid interference.
What is the dish volume of the BLS1137-010 pistons?
The BLS1137-010 pistons have a dish volume of -8.6cc. This negative volume contributes to the overall compression ratio, so ensure that your calculations account for this when building your engine.
