Chevy LS7 12° Heads 4.135 bore, 4.125 stroke, 6.125 rod, 1.055 CH, +5cc dome 1.2mm, 1.2mm, 3mm rings (CP Bullets BLSR1201-010)
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|
Make |
Chevrolet |
|
Engine Type |
LS7 Series |
|
Part Number |
BLSR1201-010 |
|
Bore (in) |
4.135 |
|
Stroke (in) |
4.125 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.055 |
|
Head Type |
LS7 |
|
Head CC |
66.5 |
|
Dome / Dish Height |
0.175 |
|
Dom/Dish CC |
5 |
|
Compression Ratio |
13.4 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.2 x 1.2 x 3.0mm |
|
VR Depth |
-.220 / SP |
|
Cubic Inch |
443 |
|
Piston Weight |
490 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Chevy LS7 12° Heads 4.135 bore, 4.125 stroke, 6.125 rod, 1.055 CH, +5cc dome 1.2mm, 1.2mm, 3mm rings (CP Bullets BLSR1201-010) |
|---|---|
| Brands | CP Carrillo |
| Engine | GM / LS |
| Make | Chevrolet, GM, Holden, LS Chev |
Delivery & Freight
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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 BLSR1201-010 pistons?
The BLSR1201-010 pistons provide a compression ratio of 13.4:1 when used with LS7 heads and appropriate clearance. Ensure that your engine's setup supports this ratio for optimal performance.
What are the specific ring thicknesses for the BLSR1201-010 pistons?
The BLSR1201-010 pistons come with 1.2mm x 1.2mm x 3.0mm ring thicknesses. It's crucial to set the ring gaps according to your engine's specifications for reliable operation.
What is the weight of the BLSR1201-010 pistons?
Each BLSR1201-010 piston weighs 490 grams. This weight should be considered when balancing the rotating assembly for your LS7 engine.
Do the BLSR1201-010 pistons have gas ports?
Yes, the BLSR1201-010 pistons are equipped with gas ports. This feature helps improve ring seal and performance, especially under high boost conditions.
What is the pin size for the BLSR1201-010 pistons?
The BLSR1201-010 pistons use a pin size of .927 inches x 2.250 inches. Ensure that your conrods are compatible with this pin size for proper fitment.
