Small Block Chevrolet 420ci Fit All 13° Dome, Bore 4.155, CH 1.062, Stroke 3.875, Rod 6.000 - Lefts & Rights (CP Pistons S2415A)
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|
Make |
Chevrolet |
|
Engine Type |
13˚ Dome 400 Chevy |
|
Part Number |
S2415A |
|
Bore (in) |
4.155 |
|
Stroke (in) |
3.875 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.062 |
|
Dome / Dish Height |
0.175 |
|
Dom/Dish CC |
-4.97 |
|
Pin |
.927 x 2.750 |
|
Ring Thickness |
.043 x .043 x 3.0mm |
|
VR Depth Int/Exh |
-.315 / SP |
|
Piston Weight |
463 |
|
Gas Port |
Yes |
|
Capacity |
420 |
|
Shlef (RPO) or Made to Order (MTO) |
ROP |
Dedicated right and left forgings; Pin-fitting included at no cost; Chamfered pins and wire locks included; Accumulator and anti-detonation grooves included; Double pin oilers, force fed from oil ring; Radius valve reliefs; Balanced to +/- 1 gram; Pick lock grooves for easy lock removal; Domes may be cut to a flat top; Designed for back-cut rings; Custom skirt cam and barrel shapes; Fully CNC Machined. Notes: D – Rail Support included, G – Supplied with Wire Locks
| Product Name | Small Block Chevrolet 420ci Fit All 13° Dome, Bore 4.155, CH 1.062, Stroke 3.875, Rod 6.000 - Lefts & Rights (CP Pistons S2415A) |
|---|---|
| Brands | CP Carrillo |
| Engine | SB Chevrolet / Holden |
| 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 S2415A pistons?
For the S2415A 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 intended use.
Can the dome height of the S2415A pistons be modified?
Yes, the domes of the S2415A pistons can be cut to a flat top if required. This modification may affect compression ratios, so be sure to calculate the new specifications accordingly.
What type of ring package is included with the S2415A pistons?
The S2415A pistons come with a ring package of .043 x .043 x 3.0mm. Ensure that the ring gaps are set correctly for your specific application to optimise performance.
What is the weight of the S2415A pistons and how does it affect engine balance?
The S2415A pistons weigh 463 grams each. It's crucial to balance these pistons with the full rotating assembly to ensure smooth operation and reduce vibrations at high RPM.
Are the S2415A pistons suitable for high boost applications?
The S2415A pistons are designed for performance and can handle moderate boost levels. However, reliability will depend on proper tuning, fuel quality, and overall engine build quality.
