Big Block Chevy Tall Deck 24.9cc dome 4.500 Bore 4.500 stroke 6.700 rod, 12 to 1 with 118cc head (CP Bullets BBC5305-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 |
Big Block |
|
Part Number |
BBC5305-STD |
|
Bore (in) |
4.5 |
|
Stroke (in) |
4.5 |
|
Rod Length (in) |
6.7 |
|
Comp Height |
1.245 |
|
Head Type |
24 OC |
|
Head CC |
118 |
|
Dome / Dish Height |
0.25 |
|
Dom/Dish CC |
24.9 |
|
Compression Ratio |
12 |
|
Pin |
.990 x 2.930 |
|
Ring Thickness |
1/16 x 1/16 x 3/16 in. |
|
VR Depth |
-0.31 |
|
Cubic Inch |
573 |
|
Piston Weight |
642 |
|
Style |
Dome |
|
Valve Reliefs |
1 VR with Slant |
|
Gas Port |
No |
| Product Name | Big Block Chevy Tall Deck 24.9cc dome 4.500 Bore 4.500 stroke 6.700 rod, 12 to 1 with 118cc head (CP Bullets BBC5305-STD) |
|---|---|
| Brands | CP Carrillo |
| Engine | Big Block Chev |
| 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 is the recommended bore clearance for the BBC5305-STD pistons?
For the BBC5305-STD pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, final clearance should be determined based on your specific engine build and operating conditions.
What compression ratio can I expect with the BBC5305-STD pistons and 118cc heads?
The BBC5305-STD pistons are designed to achieve a compression ratio of 12:1 when used with 118cc cylinder heads. Ensure that your engine's overall assembly and fuel quality can support this compression for optimal performance.
Do the BBC5305-STD pistons require any specific machining?
Yes, the BBC5305-STD pistons may require specific machining such as honing of the bore to achieve the correct clearance. It's essential to check the fitment with your block and ensure the ring gaps are set properly.
What is the weight of the BBC5305-STD pistons and how does it affect performance?
The BBC5305-STD pistons weigh 642 grams. While this weight is typical for high-performance applications, it's important to balance the entire rotating assembly to minimise vibration and ensure reliability at high RPMs.
What type of valve reliefs do the BBC5305-STD pistons have?
The BBC5305-STD pistons feature one valve relief with a slant design. This is intended to provide clearance for the valves while maintaining strength and performance characteristics of the piston.
