Chevrolet SBC 350 - Flat Top, 2.020/1.600 valve milled head 357, Bore 4.030, CH 1.550, Stroke 3.500, Rod 5.700 (CP Pistons S1241)
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|
Make |
Chevrolet |
|
Engine Type |
SBC 350 - Flat Top, 2.020/1.600 valve milled head |
|
Part Number |
S1241 |
|
Bore (in) |
4.03 |
|
Stroke (in) |
3.5 |
|
Rod Length (in) |
5.7 |
|
Comp Height |
1.55 |
|
Dome / Dish Height |
F.T |
|
Dom/Dish CC |
-5 |
|
Pin |
.927 x 2.500 |
|
Ring Thickness |
1.5 x 1.5 x 3.0mm |
|
VR Depth Int/Exh |
-.335 / SP |
|
Piston Weight |
416 |
|
Gas Port |
No |
|
Capacity |
357 |
|
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 357, Bore 4.030, CH 1.550, Stroke 3.500, Rod 5.700 (CP Pistons S1241) |
|---|---|
| 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 compression height for the S1241 pistons?
The S1241 pistons have a compression height of 1.550 inches. This is critical for achieving the desired compression ratio in your SBC 350 engine.
What is the weight of the S1241 pistons and how does it affect performance?
The S1241 pistons weigh 416 grams. Lighter pistons can improve engine responsiveness and reduce stress on the connecting rods, but ensure that your engine is balanced properly with the full rotating assembly.
Can the S1241 pistons be used with a 3.750 stroke crankshaft?
Yes, the S1241 pistons can be used with a 3.750 stroke crankshaft, provided that the correct clearance and fitment are maintained. Always consult with your engine builder for specific machining requirements.
What type of ring thickness do the S1241 pistons use?
The S1241 pistons use a ring thickness of 1.5 x 1.5 x 3.0mm. Ensure that the ring gaps are set appropriately for your application to prevent issues with blow-by and oil consumption.
Are the S1241 pistons suitable for high-performance applications?
Yes, the S1241 pistons are designed for high-performance applications, including 500 CFM two and four barrel setups. However, reliability will depend on proper machining, tuning, and fuel quality.
