Chevrolet BBC 454, Bore 4.500, CH 1.395, Flat Top (CP Pistons S5020)
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|
Make |
Chevrolet |
|
Engine Type |
BBC 454 |
|
Part Number |
S5020 |
|
Bore (in) |
4.5 |
|
Stroke (in) |
4 |
|
Rod Length (in) |
6.385 |
|
Comp Height |
1.395 |
|
Dome / Dish Height |
F.T |
|
Dom/Dish CC |
-3 |
|
Pin |
.990 x 2.930 |
|
Ring Thickness |
1/16 x 1/16 x 3/16 in. |
|
VR Depth Int/Exh |
-0.3 |
|
Piston Weight |
624 |
|
Gas Port |
No |
|
Capacity |
509 |
|
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, Bore 4.500, CH 1.395, Flat Top (CP Pistons S5020) |
|---|---|
| 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 is the recommended bore clearance for the S5020 pistons?
For the S5020 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on the specific application and operating conditions, so always consult with your engine builder for precise measurements.
Can the S5020 pistons be used with nitrous or forced induction?
Yes, the S5020 pistons are designed to handle nitrous oxide systems as well as supercharged or turbocharged applications. Ensure that your engine is properly tuned and that all components are rated for the intended power levels.
What is the weight of the S5020 pistons, and how does it affect engine balance?
The S5020 pistons weigh 624 grams. When using these pistons, it's crucial to balance the entire rotating assembly, including the crankshaft and conrods, to maintain optimal engine performance and reliability.
What type of wrist pins are included with the S5020 pistons?
The S5020 pistons come with .990 x 2.930 wrist pins, which are included at no additional cost. Ensure proper fitment and clearance when installing these pins in your engine.
What is the significance of the double pin oilers in the S5020 pistons?
The double pin oilers in the S5020 pistons provide enhanced lubrication to the wrist pins, which helps reduce wear and improve performance, especially under high-stress conditions. This feature is beneficial for high-performance applications.
