612000CB-1 Manley Piston EJ257 for 06-14 WRX / 04+ STi
This Manley Piston for the EJ257 motor in the 2006-2014 WRX and 2004+ STi models is sold individually. Price includes one piston, one pin, one ring set and round wire locks. Please confirm if you need Grade A or B pistons.See more Manley Pistons for the EJ257 WRX & STi.
Vehicle Fitment:
Subaru EJ257
2006-2014 WRX
2004-2021 STi
Piston Specs:
Important Notes:
These pistons feature skirt diameters that correspond to the OEM Grade A or B bores resulting in a piston to wall clearance range of .0023” - .0031”. Check the bore grades on the top of your block and order the appropriate quantities of Grade A or B pistons. (Sold as -1 individual pieces, not sets.)
Manley Platinum Series Pistons:
• Moly Coated Skirts
• 2618 high strength material
• Lightweight design with offset wrist pin for quiet start-ups
• Pressure balance groove
• Will accommodate +1mm valve sizes
• Premium Steel top rings with Napier second ring
• Higher tension oil rings for improved oil control
• 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
Includes:
(1) Piston
(1) Piston Ring Set
(1) Wrist Pin
(1) Wire Locks
Images:
Pistons will vary slightly by application. Images are for reference.
Vehicle Fitment:
Subaru EJ257
2006-2014 WRX
2004-2021 STi
Piston Specs:
| Part Number: | 612000CB‑1 |
| Pin: | Standard .180" Wall |
| Bore Size: | 99.5mm (Grade B) |
| Rod Length: | 5.137" |
| Stroke: | 79mm Standard Stroke (2.5L) |
| Comp Distance: | 1.209" |
| Dome Volume: | -22 cc |
| Cylinder Head cc: | 51 |
| Compression Ratio: | 8.5:1 |
| Piston Type: | Dish |
| Weight: | 395 Grams |
| Ring Set: | 46995DT‑1 |
These pistons feature skirt diameters that correspond to the OEM Grade A or B bores resulting in a piston to wall clearance range of .0023” - .0031”. Check the bore grades on the top of your block and order the appropriate quantities of Grade A or B pistons. (Sold as -1 individual pieces, not sets.)
Manley Platinum Series Pistons:
• Moly Coated Skirts
• 2618 high strength material
• Lightweight design with offset wrist pin for quiet start-ups
• Pressure balance groove
• Will accommodate +1mm valve sizes
• Premium Steel top rings with Napier second ring
• Higher tension oil rings for improved oil control
• 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
Includes:
(1) Piston
(1) Piston Ring Set
(1) Wrist Pin
(1) Wire Locks
Images:
Pistons will vary slightly by application. Images are for reference.
See more Manley Parts
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