SB Chev 305 Sprint Car 3.776 bore, 3.500 Stoke, 5.700 Rod, 1.550 CH, Vert Gas Ports Flat Top 9:7 CR 1mm,1mm, 2mm rings - Lefts & Rights (CP Bullets BCRE2031-040)
SB Chev 305 Sprint Car 3.796 bore, 3.500 Stoke, 5.700 Rod, 1.550 CH, Vert Gas Ports Flat Top 9:7 CR 1mm,1mm, 2mm rings - Lefts & Rights (CP Bullets BCRE2031-060)
SB Chev 305 Sprint Car 3.786 bore, 3.500 Stoke, 5.700 Rod, 1.550 CH,Vert Gas Ports Flat Top 9:7 CR 1mm,1mm, 2mm rings - Lefts & Rights (CP Bullets BCRE2031-050)
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
|
Make |
Chevrolet |
|
Engine Type |
Small Block Bullet Special 305 Race Saver Series |
|
Part Number |
BCRE2031-050 |
|
Bore (in) |
3.786 |
|
Stroke (in) |
3.5 |
|
Rod Length (in) |
5.7 |
|
Comp Height |
1.55 |
|
Head Type |
Brodix Spec Race Saver |
|
Head CC |
62 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-1.4 |
|
Compression Ratio |
9.7 |
|
Pin |
.927 x 2.250 |
|
Ring Thickness |
1.0 x 1.0 x 2.0mm |
|
VR Depth |
-.180 / SP |
|
Cubic Inch |
316 |
|
Piston Weight |
416 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | SB Chev 305 Sprint Car 3.786 bore, 3.500 Stoke, 5.700 Rod, 1.550 CH,Vert Gas Ports Flat Top 9:7 CR 1mm,1mm, 2mm rings - Lefts & Rights (CP Bullets BCRE2031-050) |
|---|---|
| Brands | CP Carrillo |
| Engine | SB Chevrolet / Holden |
| Make | GM |
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 are the recommended machining requirements for the BCRE2031-050 pistons?
For the BCRE2031-050 pistons, ensure that the bore is honed to the correct clearance specified by the engine builder. Typically, a clearance of 0.0030" to 0.0035" is suitable for race applications. Additionally, check that the ring gaps are set appropriately for the intended use, taking into account the expected operating temperatures.
What is the significance of the gas ports in the BCRE2031-050 pistons?
The gas ports in the BCRE2031-050 pistons enhance ring sealing and improve performance by allowing combustion gases to pressurise the ring grooves. This can lead to better power output and reduced blow-by, which is crucial in a racing environment. Ensure that the cylinder head and intake system are compatible with this design.
What compression ratio can I expect with the BCRE2031-050 pistons in my SB Chev 305?
The BCRE2031-050 pistons provide a compression ratio of 9.7:1 when used with Brodix Spec Race Saver heads with a 62cc chamber. However, actual compression may vary based on the final assembly and any modifications made to the engine. Always verify with your specific setup.
What is the weight of the BCRE2031-050 pistons and how does it affect engine performance?
The BCRE2031-050 pistons weigh 416 grams each. Lighter pistons can improve engine response and RPM capability, but it's essential to balance them with the entire rotating assembly to prevent vibration and ensure longevity. Consider the overall weight of the components when building your engine.
Can I use the BCRE2031-050 pistons with any rod length?
The BCRE2031-050 pistons are designed for a 5.7-inch rod length. Using a different rod length may result in incorrect compression height and clearance issues. Always ensure compatibility with your specific engine configuration to achieve optimal performance.
