Forged Pistons for Mitsubishi, 4G63 2G (Rod 156mm), 94mm Stoke, 85mm, 8.5:1 or EVO VIII/EVO IX, 9:1 (CP Pistons SC7243)
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|
Make |
Mitsubishi |
|
Model |
4G63 2G (Rod 156mm, 6MM longer than stock) |
|
Part Number |
SC7243 |
|
Cylinders |
4 |
|
Bore (in) |
3.346 |
|
Bore (mm) |
85 |
|
Size |
STD |
|
Stroke |
94 |
|
Conrod |
156 |
|
Comp Height (in) |
1.015 |
|
Comp Height (mm) |
25.8 |
|
Dom/Dish CC |
-16.6 |
|
Compression Ratio |
8.5 |
|
Weight (Grams) |
270 |
|
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), 94mm Stoke, 85mm, 8.5:1 or EVO VIII/EVO IX, 9:1 (CP Pistons SC7243) |
|---|---|
| Brands | CP Carrillo |
| Engine | 4G63 |
| Make | Mitsubishi |
Delivery & Freight
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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 do these pistons provide for the 4G63 engine?
The SC7243 pistons offer a compression ratio of 8.5:1 for standard applications and 9:1 for EVO VIII/EVO IX setups. Ensure that your engine's configuration aligns with these ratios for optimal performance.
What is the recommended bore clearance for these pistons?
For the SC7243 pistons, a typical bore clearance of 0.0015" to 0.0025" is recommended. However, always confirm with your engine builder as specific clearances may vary based on your engine's setup and intended use.
Do these pistons require any specific machining before installation?
Yes, the SC7243 pistons may require the cylinder bores to be honed to achieve the correct clearance. Additionally, ensure that the piston ring grooves are clean and properly sized for the included rings.
What type of wrist pin is included with these pistons?
The SC7243 pistons come with standard wrist pins (22mm) included at no additional cost. Upgraded and ultra-duty pins are also available for those seeking enhanced performance.
Can these pistons accommodate high lift camshafts?
Yes, the SC7243 pistons feature deep valve reliefs designed to accommodate high lift camshafts and oversized valves, making them suitable for performance applications that require such modifications.
