Small Block Chevy Dish -17.5cc All 23 Heads 4.060 Bore,3.750 stroke, 6.000 rod 9.5 to 1 comp with a 64cc head (CP Bullets BC1031-060)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block |
|
Part Number |
BC1031-060 |
|
Bore (in) |
4.06 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.125 |
|
Head Type |
All 23 deg |
|
Head CC |
64 |
|
Dome / Dish Height |
-0.115 |
|
Dom/Dish CC |
-17.5 |
|
Compression Ratio |
9.5 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth |
-.310 / -.310 |
|
Cubic Inch |
388 |
|
Piston Weight |
423 |
|
Style |
Dish |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
No |
| Product Name | Small Block Chevy Dish -17.5cc All 23 Heads 4.060 Bore,3.750 stroke, 6.000 rod 9.5 to 1 comp with a 64cc head (CP Bullets BC1031-060) |
|---|---|
| Brands | CP Carrillo |
| Engine | SB Chevrolet / Holden |
| Make | GM |
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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 BC1031-060 pistons?
The BC1031-060 pistons are designed to achieve a compression ratio of 9.5:1 when used with a 64cc cylinder head. Ensure that your engine's specifications align with this setup for optimal performance.
What are the specific machining requirements for the BC1031-060 pistons?
When installing the BC1031-060 pistons, it's crucial to ensure proper bore clearance and ring gaps are set according to your engine's specifications. Additionally, verify that the piston pin bores are correctly sized and honed if necessary.
What is the weight of the BC1031-060 pistons and how does it affect performance?
The BC1031-060 pistons weigh 423 grams. Lighter pistons can improve engine response and reduce reciprocating mass, but ensure that your rotating assembly is balanced to maintain reliability and performance.
Are there any specific considerations for valve reliefs with the BC1031-060 pistons?
The BC1031-060 pistons feature two valve reliefs. It's essential to check valve clearance during assembly to avoid interference, especially if using aftermarket camshafts or cylinder heads.
What type of ring thickness is compatible with the BC1031-060 pistons?
The BC1031-060 pistons are designed to work with 1.5mm x 1.5mm x 3.0mm ring sets. Ensure that the rings are properly gapped and installed to maintain engine performance and longevity.
