Chevrolet 18° Flat Top 400 Chevrolet with Gas Ports 406, Bore 4.155, CH 1.125, Stroke 3.750, Rod 6.000 - Lefts & Rights (CP Pistons S2195)
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|
Make |
Chevrolet |
|
Engine Type |
18˚ Flat Top 400 Chevy With Gas Ports |
|
Part Number |
S2195 |
|
Bore (in) |
4.155 |
|
Stroke (in) |
3.75 |
|
Rod Length (in) |
6 |
|
Comp Height |
1.125 |
|
Dome / Dish Height |
F.T |
|
Dom/Dish CC |
-7.2 |
|
Pin |
.927 x 2.750 |
|
Ring Thickness |
1.2 x 1.2 x 3.0mm |
|
VR Depth Int/Exh |
-.330 / SP |
|
Piston Weight |
455 |
|
Gas Port |
Yes |
|
Capacity |
407 |
|
Shlef (RPO) or Made to Order (MTO) |
MTO |
Dedicated right and left forgings; Wrist pins and pin-fitting included at no cost; Accumulator groove included; Double pin oilers, force fed from oil ring; Designed for back cut rings; Chamfered ring and wire locks; Balanced to +/- 1 gram ; Pick lock grooves for easy lock removal; Fully CNC Machined. Notes: D – Rail Support included , G – Supplied with Wire Locks
| Product Name | Chevrolet 18° Flat Top 400 Chevrolet with Gas Ports 406, Bore 4.155, CH 1.125, Stroke 3.750, Rod 6.000 - Lefts & Rights (CP Pistons S2195) |
|---|---|
| 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 are the specific machining requirements for the S2195 pistons?
The S2195 pistons are designed for a 4.155-inch bore and require precise bore clearance to ensure optimal performance. It's crucial to set the ring gaps according to your specific application and tuning. Additionally, verify that the wrist pin fitment is correct, as these pistons come with included wrist pins that may require fitting.
What is the recommended compression height for the S2195 pistons?
The S2195 pistons have a compression height of 1.125 inches. This measurement is critical for maintaining the desired compression ratio in your 400 Chevrolet engine, so ensure that your cylinder head and gasket combination complements this height.
Can I use these pistons with a stock 400 Chevrolet engine?
While the S2195 pistons can be used in a stock 400 Chevrolet engine, modifications may be necessary to accommodate the increased performance potential. Consider factors such as head flow, camshaft selection, and fuel quality to ensure reliability and performance gains.
What is the weight of the S2195 pistons, and how does it affect performance?
The S2195 pistons weigh 455 grams each. This weight is designed to balance performance with durability. Lighter pistons can improve engine response and RPM capabilities, but ensure that your connecting rods and crankshaft are compatible with this weight to maintain engine balance.
What is the significance of the gas ports in the S2195 pistons?
The gas ports in the S2195 pistons enhance combustion efficiency by allowing exhaust gases to flow into the ring area, improving ring sealing and reducing blow-by. This feature is particularly beneficial in high-performance applications where maintaining cylinder pressure is critical.
