Big Block Chevy SR20 N/A 4.600 bore, 4.250 stroke, 6.535 rod, 1.120 CH 24.5cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCSRE5326-100A)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBCSRE5326-100A |
|
Bore (in) |
4.6 |
|
Stroke (in) |
4.25 |
|
Rod Length (in) |
6.535 |
|
Comp Height |
1.12 |
|
Head Type |
SR20 |
|
Head CC |
95 |
|
Dome / Dish Height |
0.45 |
|
Dom/Dish CC |
24.8 |
|
Compression Ratio |
15 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
1.0 x 1.0 x 3.0mm |
|
VR Depth |
-.355 / -.020 |
|
Cubic Inch |
565 |
|
Piston Weight |
600 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's with Slant |
|
Gas Port |
Yes |
| Product Name | Big Block Chevy SR20 N/A 4.600 bore, 4.250 stroke, 6.535 rod, 1.120 CH 24.5cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCSRE5326-100A) |
|---|---|
| Brands | CP Carrillo |
| Engine | Big Block Chev |
| 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 compression ratio for the BBCSRE5326-100A pistons?
The BBCSRE5326-100A pistons are designed to achieve a compression ratio of 15:1 when used with a 95cc cylinder head. Ensure that your engine build accounts for this to optimise performance.
What machining considerations should I keep in mind when using these pistons?
When installing the BBCSRE5326-100A pistons, ensure that the bore clearance is set correctly according to your specific engine requirements. Additionally, check that the ring gaps are properly set for the intended application, as this will affect performance and reliability.
What type of valve reliefs do the BBCSRE5326-100A pistons have?
The BBCSRE5326-100A pistons feature two valve reliefs with a slant design. This is crucial for compatibility with high-performance camshaft profiles while maintaining clearance for the valves.
What is the weight of the BBCSRE5326-100A pistons, and how does it affect engine performance?
The BBCSRE5326-100A pistons weigh 600 grams each. While this weight is typical for high-performance applications, it's important to balance the entire rotating assembly to minimise vibrations and ensure optimal engine performance.
Are gas ports included in the design of the BBCSRE5326-100A pistons, and what is their purpose?
Yes, the BBCSRE5326-100A pistons are equipped with gas ports. These ports help improve ring seal and reduce blow-by, which is particularly beneficial in high-performance applications where maintaining pressure is critical.
