Chevy 415ci All LS 15° / L92 Bore 4.065 CH 1.110 Stroke 4.000 Rod 6.125 Flat Top 68cc Head (CP Bullets BLS1142-065)
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|
Make |
Chevrolet |
|
Engine Type |
LS Series |
|
Part Number |
BLS1142-065 |
|
Bore (in) |
4.065 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.11 |
|
Head Type |
Std 15 deg/ L92 |
|
Head CC |
68 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-2.7 |
|
Compression Ratio |
11 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.175 / SP |
|
Cubic Inch |
415 |
|
Piston Weight |
458 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy 415ci All LS 15° / L92 Bore 4.065 CH 1.110 Stroke 4.000 Rod 6.125 Flat Top 68cc Head (CP Bullets BLS1142-065) |
|---|---|
| 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 BLS1142-065 pistons?
The BLS1142-065 pistons are designed to achieve a compression ratio of 11:1 when paired with 68cc L92 cylinder heads. Ensure that your engine's overall configuration supports this ratio for optimal performance.
What bore size is required for the BLS1142-065 pistons?
These pistons have a bore size of 4.065 inches. It's crucial to ensure your engine block is machined to this specification for proper fitment and performance.
What type of valve reliefs do the BLS1142-065 pistons feature?
The BLS1142-065 pistons come with two valve reliefs, which are designed to accommodate LS engine configurations. Ensure proper clearance with your specific cylinder heads and camshaft to avoid interference.
What is the weight of the BLS1142-065 pistons?
The BLS1142-065 pistons weigh 458 grams each. When building your engine, consider the total rotating mass and balance it with the crankshaft and connecting rods for optimal performance.
What ring thickness is specified for the BLS1142-065 pistons?
These pistons are designed to use rings with a thickness of 1.5mm for the top and second rings, and 3.0mm for the oil ring. Ensure proper installation and gap settings as per your engine's requirements.
