Chevy LS7 12° Heads 4.125 bore, 4.000 stroke, 6.125 rod, 1.115 CH, -25cc dish dome 1.2mm, 1.2mm, 3mm rings (CP Bullets BLSR1203-STD)
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
|
Make |
Chevrolet |
|
Engine Type |
LS7 Series |
|
Part Number |
BLSR1203-STD |
|
Bore (in) |
4.125 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6.125 |
|
Comp Height |
1.115 |
|
Head Type |
LS7 |
|
Head CC |
70 |
|
Dome / Dish Height |
0.163 |
|
Dom/Dish CC |
-25.12 |
|
Compression Ratio |
9 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.2 x 1.2 x 3.0mm |
|
VR Depth |
-.220 / SP |
|
Cubic Inch |
428 |
|
Piston Weight |
453 |
|
Style |
Dish |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Chevy LS7 12° Heads 4.125 bore, 4.000 stroke, 6.125 rod, 1.115 CH, -25cc dish dome 1.2mm, 1.2mm, 3mm rings (CP Bullets BLSR1203-STD) |
|---|---|
| Brands | CP Carrillo |
| Engine | GM / LS |
| Make | Chevrolet, GM, Holden, LS Chev |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
You can calculate shipping rates inside the shopping cart. After adding all the products you would like, navigate to the cart and click the ESTIMATE SHIPPING & TAX link. .
If you only see the Click and Collect shipping option, it means that your address was not validated correctly.
If you have issues calculating freight, please get in touch. We are happy to help.
Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
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 BLSR1203-STD pistons?
The BLSR1203-STD pistons are designed for a compression ratio of 9:1 when used with LS7 heads and the specified bore and stroke.
What type of ring gaps should I set for the BLSR1203-STD pistons?
For the BLSR1203-STD pistons, ring gaps should be set according to the specific application and usage. It's crucial to consult with your engine builder for the appropriate gaps based on your power goals and RPM range.
Do the BLSR1203-STD pistons require any specific machining?
Yes, the BLSR1203-STD pistons may require specific bore clearances and ring gap settings to ensure optimal performance. Always verify with your engine builder to ensure proper fitment.
What is the weight of the BLSR1203-STD pistons?
The BLSR1203-STD pistons weigh 453 grams each, which is suitable for performance applications while maintaining durability.
Are the BLSR1203-STD pistons compatible with gas porting?
No, the BLSR1203-STD pistons do not come with gas ports. If gas porting is desired, you will need to consider alternative piston options.
-
-
-
-
-
-
GM High pressure pump Kit with both O rings and PUG001 GirdleSpecial Price AUD$222.73 Regular Price AUD$225.45 -
-
-
-
-
-
-
