Chevrolet BBC 454 Inverted Dome 522, Bore 4.560, CH 1.645, Stroke 4.000, Rod 6.135 (CP Pistons S5143)
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|
Make |
Chevrolet |
|
Engine Type |
BBC 454 Inverted Dome |
|
Part Number |
S5143 |
|
Bore (in) |
4.56 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6.135 |
|
Comp Height |
1.645 |
|
Dome / Dish Height |
-0.06 |
|
Dom/Dish CC |
-11.5 |
|
Pin |
.990 x 2.930 |
|
Ring Thickness |
1/16 x 1/16 x 3/16 in. |
|
VR Depth Int/Exh |
-0.32 |
|
Piston Weight |
719 |
|
Gas Port |
No |
|
Capacity |
523 |
|
Shlef (RPO) or Made to Order (MTO) |
MTO |
Suitable for nitrous oxide systems (NOS); Suitable for supercharged or turbo; Wrist pins and pin-fitting included at no cost; Accumulator groove included; Double pin oilers, force fed from oil ring; Balanced to +/- 1 gram; Radius valve reliefs; Generous valve relief depths allow for high lift; 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, O – Made for 10.200 Block Height, P – 9.2 Deck Height, Q – Also fits 4.000 Stroke and 6.385 Rod, R – Can be used with 4.500 Stroke and 10.180 block with 6.535 Rod, S – Supplied with .150 Wall (151g) or optional .180 Wall (175g).
| Product Name | Chevrolet BBC 454 Inverted Dome 522, Bore 4.560, CH 1.645, Stroke 4.000, Rod 6.135 (CP Pistons S5143) |
|---|---|
| Brands | CP Carrillo |
| Engine | Big Block Chev |
| 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 bore clearance for the S5143 pistons?
The recommended bore clearance for the S5143 pistons in a Big Block Chev application typically ranges from 0.0030" to 0.0040". However, it's crucial to verify this with your specific engine setup and machining tolerances.
Can the S5143 pistons be used with nitrous or forced induction?
Yes, the S5143 pistons are designed to handle nitrous oxide systems as well as supercharged or turbo applications. Ensure proper tuning and fuel quality to maintain reliability under these conditions.
What is the weight of the S5143 pistons, and how does it affect engine balance?
The S5143 pistons weigh 719 grams. It's essential to balance these pistons with the full rotating assembly to ensure optimal engine performance and longevity, especially at high RPMs.
What type of wrist pins are included with the S5143 pistons?
The S5143 pistons come with .990 x 2.930 wrist pins, and pin-fitting is included at no extra cost. Ensure proper clearance and fitment during installation.
What is the significance of the dome height and valve reliefs on the S5143 pistons?
The S5143 pistons feature an inverted dome with a height of -0.06 and generous valve relief depths, allowing for high lift camshafts. This design helps prevent piston-to-valve contact while optimising combustion efficiency.
