Forged Pistons for Mitsubishi, 4G63 2G, 100mm Stroke, 85mm, 9.5:1 or EVO VIII/EVO IX, 10:1 (CP Pistons SC7255)
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|
Make |
Mitsubishi |
|
Model |
4G63 2G |
|
Part Number |
SC7255 |
|
Cylinders |
4 |
|
Bore (in) |
3.346 |
|
Bore (mm) |
85 |
|
Size |
STD |
|
Stroke |
100 |
|
Conrod |
150 |
|
Comp Height (in) |
1.134 |
|
Comp Height (mm) |
28.8 |
|
Dom/Dish CC |
|
|
Compression Ratio |
9.5 |
|
Weight (Grams) |
291 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3347 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
866-2250-20CP1C |
|
Upgraded Pin |
866-2250-20CP3C |
|
Ultra Duty Pin |
866-2250-25CP3C |
|
Locks |
866x063 SWL |
CP pistons are compatible with oversized valves and high lift camshafts. CP Pistons represent the highest quality and is engineered for maximum power. Standard features include: Deep valve reliefs accommodate high lift camshafts; Larger valve reliefs for +1mm valve sizes; Custom skirt cam and barrel design; Accumulator grooves; High strength aluminum forgings; High performance rings; Fully CNC machined and balanced to +/- 1 gram; Wrist pins included at no additional cost; Double pin oilers force fed from oil ring groove; Pin lock grooves for easy lock removal; Pin fitting included.
| Product Name | Forged Pistons for Mitsubishi, 4G63 2G, 100mm Stroke, 85mm, 9.5:1 or EVO VIII/EVO IX, 10:1 (CP Pistons SC7255) |
|---|---|
| Brands | CP Carrillo |
| Engine | 4G63 |
| Make | Mitsubishi |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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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 compression ratio options are available for the SC7255 pistons?
The SC7255 pistons are designed for two compression ratio options: 9.5:1 for the Mitsubishi 4G63 2G and 10:1 for the EVO VIII/EVO IX applications. Choose the appropriate ratio based on your engine setup and intended use.
What is the recommended bore clearance for the SC7255 pistons?
The recommended bore clearance for the SC7255 pistons should be determined by the engine builder, taking into account the specific application and intended power levels. Typical clearance ranges for forged pistons are generally between 0.0015" to 0.0030".
Do the SC7255 pistons require any special machining?
Yes, the SC7255 pistons may require specific machining for proper fitment, including ensuring the correct bore size and ring gap settings. It's essential to verify these dimensions during the engine assembly process.
What type of wrist pins are included with the SC7255 pistons?
The SC7255 pistons come standard with high-strength wrist pins, specifically the 22mm pins. Upgraded options are also available for those looking to enhance performance further.
Can the SC7255 pistons accommodate high lift camshafts?
Yes, the SC7255 pistons feature deep valve reliefs that are designed to accommodate high lift camshafts, making them suitable for performance applications that require increased valve clearance.
