Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. Round wire locks, tool steel wrist pins, and rings are included with every set at no additional charge.
Part #
Bore Size (mm)
Over Size
Rod Length
Stroke
Comp. Distance
Dome Volume (cc)
Comp. Ratio
Piston Type
Piston Wt / Gms
Included Ring Set
Subaru WRX Sti 2004-Up - EJ257 .9055"/23mm x 2.500" Pin
612000C-4
99.5
STD
5.141"
3.110"
1.209"
-22
8.5:1
Dish
TBA
46995-4
612005C-4
100
+.5mm
5.141"
3.110"
1.209"
-22
8.5:1
Dish
TBA
461000-4
Subaru WRX 1998-Up - EJ20 .9055"/23mm x 2.500" Pin
