Big Block Chevy SR20 N/A 4.625 bore, 4.375 stroke, 6.535 rod, 1.070 CH 24.5cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCSRE5325-125A)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBCSRE5325-125A |
|
Bore (in) |
4.625 |
|
Stroke (in) |
4.375 |
|
Rod Length (in) |
6.535 |
|
Comp Height |
1.07 |
|
Head Type |
SR20 |
|
Head CC |
95 |
|
Dome / Dish Height |
0.45 |
|
Dom/Dish CC |
24.5 |
|
Compression Ratio |
15 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
1.0 x 1.0 x 3.0mm |
|
VR Depth |
-.355 / -.020 |
|
Cubic Inch |
588 |
|
Piston Weight |
597 |
|
Style |
Dome |
|
Valve Reliefs |
2 VR's with Slant |
|
Gas Port |
Yes |
| Product Name | Big Block Chevy SR20 N/A 4.625 bore, 4.375 stroke, 6.535 rod, 1.070 CH 24.5cc dome 1mm, 1mm, 3mm rings (CP Bullets BBCSRE5325-125A) |
|---|---|
| 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 BBCSRE5325-125A pistons?
The BBCSRE5325-125A pistons are designed for a compression ratio of 15:1. Ensure that your engine's setup, including head type and combustion chamber volume, is compatible to achieve this ratio.
What are the specific machining requirements for these pistons?
When installing the BBCSRE5325-125A pistons, you must ensure the bore clearance is set correctly. Additionally, check that the ring gaps are appropriately sized for your application, as these pistons come with 1.0 x 1.0 x 3.0mm rings.
What is the weight of the BBCSRE5325-125A pistons, and how does it affect performance?
The BBCSRE5325-125A pistons weigh 597 grams each. While lighter pistons can improve engine response and RPM capabilities, ensure that your engine's balance and rotating assembly are properly configured to accommodate this weight.
Can I use these pistons with any Big Block Chevy engine?
The BBCSRE5325-125A pistons are specifically designed for Big Block Chevy engines with a 4.625 bore and 4.375 stroke. Ensure your engine's specifications match these dimensions for optimal performance.
What type of valve reliefs do the BBCSRE5325-125A pistons have?
These pistons feature two slanted valve reliefs, which are designed to accommodate specific camshaft profiles and valve sizes. Verify your engine's valve train setup to ensure compatibility.
