Chevrolet BBC 454 Inverted Dome 555, Bore 4.560, CH 1.520, Stroke 4.250, Rod 6.135 (CP Pistons S5133)
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|
Make |
Chevrolet |
|
Engine Type |
BBC 454 Inverted Dome |
|
Part Number |
S5133 |
|
Bore (in) |
4.56 |
|
Stroke (in) |
4.25 |
|
Rod Length (in) |
6.135 |
|
Comp Height |
1.52 |
|
Dome / Dish Height |
-0.12 |
|
Dom/Dish CC |
-20 |
|
Pin |
.990 x 2.930 |
|
Ring Thickness |
1/16 x 1/16 x 3/16 in. |
|
VR Depth Int/Exh |
-0.32 |
|
Piston Weight |
679 |
|
Gas Port |
No |
|
Capacity |
555 |
|
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 555, Bore 4.560, CH 1.520, Stroke 4.250, Rod 6.135 (CP Pistons S5133) |
|---|---|
| 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 S5133 pistons?
The recommended bore clearance for the S5133 pistons typically ranges from 0.0030" to 0.0040". However, it's essential to consult with your engine builder to determine the best clearance for your specific application, taking into account factors like piston material and operating conditions.
Can the S5133 pistons be used with a nitrous system?
Yes, the S5133 pistons are designed to be suitable for nitrous oxide systems. Their construction and features, such as the inverted dome design and generous valve reliefs, allow for enhanced performance under increased power conditions. Ensure proper tuning and fuel quality to maintain reliability.
What is the maximum recommended RPM for the S5133 pistons?
While the S5133 pistons can handle high RPM applications, the maximum recommended RPM will depend on your engine setup, including the balance of the rotating assembly and the quality of machining. It's crucial to ensure proper clearances and tuning to achieve optimal performance and reliability.
What type of wrist pins are included with the S5133 pistons?
The S5133 pistons come with .990 x 2.930 wrist pins included at no additional cost. These pins are designed to provide a secure fit and support the performance demands of high-powered applications.
Are the S5133 pistons suitable for use with angle milled heads?
Yes, the S5133 pistons are suitable for use with angle milled heads. Their design incorporates generous valve reliefs, allowing for compatibility with high-lift camshafts and modified cylinder heads. Always verify clearances during assembly to ensure proper fitment.
