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Manley Platinum Series Pistons - 8.5:1 (EJ25)
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Manley Platinum Series Pistons - 8.5:1 (EJ25)
Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Offset wrist pin design is utilized for quiet start-ups. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower.
All pistons come with moly coated skirts. Round wire locks, premium chrome moly wrist pins, and premium steel top ring sets from Total Seal are included with every kit at no additional charge. 9310 alloy upgraded wrist pins are available.
Recommended clearance: .003" for mildly boosted and .0035" for highly boosted measured .850" (79/83mm Strokes) and 1.100" (75mm Stroke) from the bottom of the oil ring groove.
Manley Subaru EJ257 pistons now include Napier style second rings and higher tension oil rings (by Total Seal) for superior oil control.
FEATURES
- 2618 high strength material; Lightweight design with offset wrist pin for quiet start-ups
- 2.500” x .180” wall Premium Chrome Moly pin (Standard Series) included P/N 42346
- Pressure balance groove
- Will accommodate +1mm valve sizes
- Premium Steel top rings with Napier seconds and round wire locks included
- Recommended piston clearance: .003” for mildly boosted and .0035” for highly boosted
measured .850” (79/83mm stroke) and 1.100” (75mm stroke) from the bottom of the oil ring
SPECIFICATIONS
- Rods Length: 5.137”
- Comp Distance: 1.209”
- Dome Volume: -22cc
- Cylinder Head: 51cc
- Compresion: 8.5:1
- Piston Type: Dish
AVAILABLE SIZE
- STD - 99.5mm Part# 612000C-4
- +0.25 - 99.75mm Part# 612002C-4
- +0.50 - 100mm Part# 612005C-4
| Model | Fitment Confirmation |
|---|---|
| EJ255 (Standard Stroke) | ✓ |
| EJ227 (Standard Stroke) | ✓ |
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.
| SKU | Manley Platinum Series Pistons - 8.5:1 (EJ25) |
|---|---|
| Manufacturer's Part Number | 14024-1 |
| Brand | Manley |
| Product Type | Engine |
| Engine | Engine Internals |
