Chevrolet BBC Flat Top 11°, 12°, 14° N20 BBC, Bore 4.600, CH 1.140, Custom Stroke, Custom Rod (CP Pistons SS5510)
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|
Make |
Chevrolet |
|
Engine Type |
BBC Flat Top 11˚ , 12˚, 14˚ N20 |
|
Part Number |
SS5510 |
|
Bore (in) |
4.6 |
|
Stroke (in) |
Varies |
|
Rod Length (in) |
Varies |
|
Comp Height |
1.14 |
|
Dome / Dish Height |
F.T |
|
Dom/Dish CC |
-7.8 |
|
Pin |
.990 x 2.930 |
|
Ring Thickness |
.043 x .043 x 3/16 in. |
|
VR Depth Int/Exh |
-.285 / -.085 |
|
Piston Weight |
591 |
|
Gas Port |
Yes |
|
Capacity |
Varies |
|
Shlef (RPO) or Made to Order (MTO) |
MTO |
Flat Top forging for shallow valve angles; Wrist pins and pin-fitting included at no cost; Radius valve relief; Double pin oilers, force fed from oil ring; Balanced to +/- 1 gram; Pick lock grooves for easy lock removal; Suitable for angle milled heads; Fully CNC machined. Notes: B – Supplied with Double Spiral Locks, D – Rail Support included , T – Supplied with .180 Wall (142g), or optional 165g.
| Product Name | Chevrolet BBC Flat Top 11°, 12°, 14° N20 BBC, Bore 4.600, CH 1.140, Custom Stroke, Custom Rod (CP Pistons SS5510) |
|---|---|
| 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 are the recommended clearances for the SS5510 pistons in a Big Block Chev?
For the SS5510 pistons, it's crucial to establish correct bore clearance based on your specific application. Typically, a clearance of 0.0030" to 0.0040" is recommended for forged pistons in performance applications. However, always consult with your engine builder for precise specifications tailored to your setup.
What type of valve reliefs are included with the SS5510 pistons?
The SS5510 pistons feature radius valve reliefs designed for shallow valve angles, accommodating various camshaft profiles. This design helps prevent piston-to-valve contact while optimising airflow.
How do I ensure proper fitment of the wrist pins with the SS5510 pistons?
The SS5510 pistons come with wrist pins and pin-fitting included at no extra cost. Ensure that the pin fitment is checked for proper clearance, typically around 0.0010" to 0.0015" for performance applications, to allow for thermal expansion.
What is the weight of the SS5510 pistons and how does it affect performance?
The SS5510 pistons weigh 591 grams. While lighter pistons can improve engine response and reduce reciprocating mass, it's essential to balance them with the full rotating assembly to maintain engine reliability and performance.
Can the SS5510 pistons be used with angle milled heads?
Yes, the SS5510 pistons are suitable for use with angle milled heads. Their design accommodates the necessary clearances, but it's advisable to verify specific measurements with your engine builder to ensure compatibility.
