Small Block Chevy Flat Top -6cc 20/30 shift 23 Heads 4.030 Bore,3.500 stroke, 5.700 rod 10.1 to 1 comp with a 64cc head - Lefts & Rights (CP Bullets BCR1350-030)
Small Block Chevy Flat Top -6cc 20/30 shift 23 Heads 4.035 Bore,3.500 stroke, 5.700 rod 10.1 to 1 comp with a 64cc head - Lefts & Rights (CP Bullets BCR1350-035)
Small Block Chevy Flat Top -6cc 20/30 shift 23 Heads 4.030 Bore,3.500 stroke, 6.000 rod 10.1 to 1 comp with a 64cc head - Lefts & Rights (CP Bullets BCR1320-030)
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|
Make |
Chevrolet |
|
Engine Type |
Small Block Bullet Special Race Series |
|
Part Number |
BCR1320-030 |
|
Bore (in) |
4.03 |
|
Stroke (in) |
3.5 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.25 |
|
Head Type |
All 23 deg heads |
|
Head CC |
64 |
|
Dome / Dish Height |
FT |
|
Dom/Dish CC |
-6 |
|
Compression Ratio |
10.1 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.2 x 1.2 x 3.0mm |
|
VR Depth |
-.345 / SP |
|
Cubic Inch |
357 |
|
Piston Weight |
408 |
|
Style |
FT |
|
Valve Reliefs |
2 VR's |
|
Gas Port |
Yes |
| Product Name | Small Block Chevy Flat Top -6cc 20/30 shift 23 Heads 4.030 Bore,3.500 stroke, 6.000 rod 10.1 to 1 comp with a 64cc head - Lefts & Rights (CP Bullets BCR1320-030) |
|---|---|
| Brands | CP Carrillo |
| 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 BCR1320-030 pistons?
For the BCR1320-030 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this may vary based on your specific engine build and intended use, so always consult your engine builder for precise specifications.
What is the compression ratio of the BCR1320-030 pistons with a 64cc head?
The BCR1320-030 pistons yield a compression ratio of 10.1:1 when used with a 64cc cylinder head. Ensure that your engine's overall assembly and tuning are compatible with this compression for optimal performance.
What type of valve reliefs do the BCR1320-030 pistons have?
The BCR1320-030 pistons feature two valve reliefs designed to accommodate the clearance needed for typical camshaft profiles in Small Block Chevy applications. Always verify compatibility with your specific camshaft to prevent interference.
What is the weight of the BCR1320-030 pistons and how does it affect performance?
The BCR1320-030 pistons weigh 408 grams each. Lighter pistons can improve engine response and reduce reciprocating mass, but ensure that your rotating assembly is balanced to maintain reliability and performance.
Are gas ports included in the BCR1320-030 pistons, and what is their purpose?
Yes, the BCR1320-030 pistons come with gas ports. These ports help improve ring seal and reduce blow-by by allowing combustion gases to pressurise the ring pack, enhancing overall efficiency and performance.
