Subaru EJ25T Forged Pistons

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Engine:   EJ25T DOHC 16v Turbo
Capacity:   2457cc
Cylinders:   4
Bore Size:   99.5mm/3.92in
Stroke:   79mm/3.11in

 Piston Assembly Set (Includes Piston Rings)
Part # 4MKRY9625S
Sizes available: STD, 0.50
 Piston Information  Piston Ring Information
Piston Type Forged Ring Set Part # C1966
Compression Height 30.3mm/1.193in Sizes Available: STD, 0.50
Piston Crown Capacity 22cc Ring 1 Ring 2 Ring 3
  Dish Type

Steel Nitrided

Barrel plain

Hook scraper napier Duraflex 3 piece oil ring
Bowl Depth 4.62mm/0.182in Width 1.2mm/0.0472in 1.5mm/0.059in 2.8mm/0.11in
Compression Ratio 8.5 Depth 3.7mm/0.146in 4.191mm/0.165in 4.11mm/0.162in
Piston Mass 399 grams



Pin Mass 123 grams
Pin Diameter 23mm/0.906in
Pin Locking Device
 Wire Circlip
Clearance
Skirt Coated Yes

 
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