Chevrolet SBC 350 - Flat Top, 2.020/1.600 valve milled head 358, Bore 4.040, CH 1.250, Stroke 3.500, Rod 6.000 (CP Pistons S1203)
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|
Make |
Chevrolet |
|
Engine Type |
SBC 350 - Flat Top, 2.020/1.600 valve milled head |
|
Part Number |
S1203 |
|
Bore (in) |
4.04 |
|
Stroke (in) |
3.5 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.25 |
|
Dome / Dish Height |
F.T |
|
Dom/Dish CC |
-5 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
.043 x .043 x 3.0mm |
|
VR Depth Int/Exh |
-.335 / SP |
|
Piston Weight |
380 |
|
Gas Port |
Yes |
|
Capacity |
359 |
|
Shlef (RPO) or Made to Order (MTO) |
MTO |
Stronger forging designed for 500 CFM two and four barrel applications; with dedicated right and left hand forgings; Suitable for angle milled heads; Accumulator grooves included as well as wrist pins and pin fitting at no cost; Double pin oilers; force fed from oil ring; Fully CNC machined. Notes: B - Supplied with Double Spiral Locks, C - .10 Deck Clearance with 3.480 Stroke, D - Rail Support included, E - Can be used with 3.750 Stroke & 6.000 Rod.
| Product Name | Chevrolet SBC 350 - Flat Top, 2.020/1.600 valve milled head 358, Bore 4.040, CH 1.250, Stroke 3.500, Rod 6.000 (CP Pistons S1203) |
|---|---|
| Brands | CP Carrillo |
| Engine | 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 S1203 pistons?
For the S1203 pistons, a typical bore clearance is around 0.0030" to 0.0035". However, it's essential to confirm this with your specific engine build and intended use, as clearances can vary based on factors like temperature and operating conditions.
Can the S1203 pistons be used with a 3.750 stroke crankshaft?
Yes, the S1203 pistons can be used with a 3.750 stroke crankshaft, but ensure that the overall assembly is properly checked for clearance to avoid any potential interference with the cylinder head or other components.
What type of fuel is recommended for engines using the S1203 pistons?
Engines using the S1203 pistons should ideally run on high-octane fuel, especially if you plan to push the engine towards its performance limits. Fuel quality can significantly impact performance and reliability.
What machining processes are necessary before installing the S1203 pistons?
Before installing the S1203 pistons, ensure that the cylinder bores are honed to the correct size and finish. Additionally, check that the ring gaps are set according to your engine's specifications and intended use.
What is the weight of the S1203 pistons, and how does it affect performance?
The S1203 pistons weigh 380 grams. Lighter pistons can improve engine response and reduce stress on the connecting rods and crankshaft, but it's crucial to balance the entire rotating assembly for optimal performance.
