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)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block Bullet Special 305 Race Saver Series |
|
Part Number |
BCRE2031-060 |
|
Bore (in) |
3.796 |
|
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 |
318 |
|
Piston Weight |
418 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | 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) |
|---|---|
| Brands | CP Carrillo |
| Engine | SB Chevrolet / Holden |
| Make | GM |
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 bore clearance for the BCRE2031-060 pistons?
For the BCRE2031-060 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, always confirm with your engine builder as specific clearances can vary based on the application and intended use.
What type of fuel is best suited for the BCRE2031-060 pistons?
These pistons are designed for high-performance applications and are best suited for racing fuels with a high octane rating. Ensure your fuel quality matches the compression ratio of 9.7:1 to prevent detonation.
Do I need to modify my cylinder head for the BCRE2031-060 pistons?
The BCRE2031-060 pistons feature valve reliefs designed for Brodix Spec Race Saver heads. However, it's crucial to check for proper clearance during assembly, especially if your engine has been modified or uses different components.
What is the significance of the gas ports in the BCRE2031-060 pistons?
The gas ports in the BCRE2031-060 pistons help improve ring sealing and reduce blow-by by allowing combustion gases to pressurise the ring pack. This feature is particularly beneficial in high RPM and high-load racing applications.
What is the weight of the BCRE2031-060 pistons, and how does it affect performance?
The BCRE2031-060 pistons weigh 418 grams. Lighter pistons can improve engine response and reduce rotating mass, but ensure that the overall rotating assembly is balanced to maintain reliability and performance.
