Forged Pistons for Mitsubishi, 4G63 2G (Rod 156mm), 85mm, 10:1 or EVO VIII/EVO IX, 10.5:1 (CP Pistons SC7240)
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|
Make |
Mitsubishi |
|
Model |
4G63 2G (Rod 156mm, 6MM longer than stock) |
|
Part Number |
SC7240 |
|
Cylinders |
4 |
|
Bore (in) |
3.346 |
|
Bore (mm) |
85 |
|
Size |
STD |
|
Stroke |
88 |
|
Conrod |
156 |
|
Comp Height (in) |
1.134 |
|
Comp Height (mm) |
28.8 |
|
Dom/Dish CC |
-2.2 |
|
Compression Ratio |
10 FT |
|
Weight (Grams) |
295 |
|
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 (Rod 156mm), 85mm, 10:1 or EVO VIII/EVO IX, 10.5:1 (CP Pistons SC7240) |
|---|---|
| Brands | CP Carrillo |
| Engine | 4G63 |
| Make | Mitsubishi |
Delivery & Freight
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Product images are for description purposes only. Actual product may vary.
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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 compression ratio of the SC7240 pistons?
The SC7240 pistons have a compression ratio of 10:1 for standard applications and 10.5:1 for use in EVO VIII/EVO IX setups.
What are the recommended bore and stroke specifications for these pistons?
These pistons are designed for an 85mm bore and an 88mm stroke, specifically for the Mitsubishi 4G63 engine.
What type of wrist pins are included with the SC7240 pistons?
The SC7240 pistons come with standard wrist pins (part number 866-2250-20CP1C) included at no additional cost. Upgraded and ultra-duty pins are also available.
Do the SC7240 pistons accommodate oversized valves?
Yes, the SC7240 pistons feature deep valve reliefs that can accommodate oversized valves and high lift camshafts, making them suitable for performance applications.
What machining considerations should I keep in mind when using these pistons?
When installing the SC7240 pistons, ensure correct bore clearance and ring gaps are set by the engine builder. Additionally, the pistons should be fully CNC machined and balanced to +/- 1 gram for optimal performance.
