Icon Premium Piston Kit, IC992CK.25MM

Piston and Ring Kit - Subaru STI, 04-07, 2.5L, Rod 130.5mm Circular Dish 22.3cc

Offset pin.020. Dish design similar to OE. Coated skirt. Piston is built with.0025 clearance.

Sold As: Kit with Rings

Engine Manufacturer: Subaru

Engine Family: Subaru H4 EJ25

Engine Displacement (Liters): 2.5

Engine Displacement (cubic inches): 153

Bore Size (in): 3.9175

Bore Size (mm): 99.5

Piston Head Type: Dish

Crown (cc): +22.3cc

Compression Ratio: 53.9-8.3:1

Top Land: 0.175

Pin Type: Press or Floating

Oversized: Yes

Stroke (in): 2.756

Rod (mm): 130.5

Exhaust Valve Depth/Diameter: .227/1.340

Oversize: .25mm

Intake Valve Depth/Diameter: .227/1.340

Oversizes: STD.010mm.038mm.25mm.5mm

Pin Diameter (mm): 23

Compression Height IN: 1.209

Bore Diameter IN: 3.9175

Compression Height MM: 30.7

Bore Diameter MM: 99.5

OE Deck Height: 7.913

Alloy: 4032

Piston Material: Forged 4032 Alloy

Lock: 805323040

Pin Configuration: Centered

Ring Pack: 1.2mm, 1.2mm, 2.0mm

Crown Type: DISH

Year Range: -

Make for Engine Family: Subaru

Stroke (mm): 70

Base Number: IC992C

Grade Type: Performance

Pin Number: .905X2.250

Rod (in): 5.138

Pin Diameter (in): 0.905