Forged Pistons for Mitsubishi, 4G64 / 4G63 2G Head, 87.5mm, 8:1 or EVO VIII/IX Head, 8.5:1 (CP Pistons SC7259)
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|
Make |
Mitsubishi |
|
Model |
4G64 / 4G63 2G Head |
|
Part Number |
SC7259 |
|
Cylinders |
4 |
|
Bore (in) |
3.445 |
|
Bore (mm) |
87.5 |
|
Size |
+1.0mm |
|
Stroke |
88 |
|
Conrod |
156 |
|
Comp Height (in) |
1.37 |
|
Comp Height (mm) |
34.8 |
|
Dom/Dish CC |
|
|
Compression Ratio |
8 |
|
Weight (Grams) |
337 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3445 |
|
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, 4G64 / 4G63 2G Head, 87.5mm, 8:1 or EVO VIII/IX Head, 8.5:1 (CP Pistons SC7259) |
|---|---|
| Brands | CP Carrillo |
| Engine | 4G63 |
| Make | Mitsubishi |
Delivery & Freight
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If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
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 ratio for the SC7259 pistons?
The SC7259 pistons are designed for a compression ratio of 8:1 when used with the Mitsubishi 4G64 / 4G63 2G head, and 8.5:1 with the EVO VIII/IX head. Ensure that your engine setup aligns with these ratios for optimal performance.
What are the specific machining requirements for the SC7259 pistons?
When installing SC7259 pistons, ensure that the bore clearance is set correctly according to your engine's specifications. Additionally, verify that the ring gaps are appropriately set based on your application and boost levels. Always consult with your engine builder for precise machining needs.
Can the SC7259 pistons accommodate high lift camshafts?
Yes, the SC7259 pistons feature deep valve reliefs that are designed to accommodate high lift camshafts, making them suitable for performance applications where increased airflow is required.
What is the weight of each SC7259 piston?
Each SC7259 piston weighs 337 grams. This lightweight design contributes to reduced reciprocating mass, which can enhance engine response and performance.
What type of wrist pins are included with the SC7259 pistons?
The SC7259 pistons come with standard wrist pins (part number 866-2250-20CP1C) included at no additional cost. Upgraded and ultra-duty wrist pins are also available for those seeking additional strength.
