IAG Performance Stage 2.5 EJ20 Subaru Closed Deck Short Block | 2002-2005 Subaru WRX (IAG-ENG-S755) IAG Performance

2002-2005 Subaru WRX Stage 2.5 EJ20 Subaru Closed Deck Short Block Heads by IAG

The IAG Stage 2.5 Short Block starts with brand new Subaru 2.0L engine case halves. IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG CLOSED Deck Inserts that transform the block into a solid deck. The unique inserts feature small passages that allow needed coolant flow to the deck surface. Next, the short block is Deck Plate bored and honed to 92.5mm in our in-house Sunnen SV-30 the most advanced automotive cylinder hone available. IAG’s in-house honing process is able to set custom piston to wall clearances to best fit your needs. The modified case halves are then assembled using a new Subaru 2.0L crankshaft with improved oil passages that is matched to ACL or King race main bearings. IAG-Spec H-Beam connecting rods and ARP rod bolts are utilized along with ACL or King race rod bearings. The case halves are sealed with new OEM main/case bolts and sealant. Finally, IAG-Spec 92.5mm JE FSR 2618 Forged Pistons with .210″ 9310 Steel Wrist Pins are added to finish the Stage 2.5 2.0L short block.

Features

• Converted to Closed Deck using brand new Subaru OEM case halves, bored and honed to 92.5mm.
• IAG-Spec JE FSR 92.5mm 2618 Forged Pistons, Ring Set, .210″ 9310 Steel Wrist Pins, Clips, (Perfect Skirt Coating and Offset Wrist Pins)
• IAG-Spec H-Beam / ARP2000 Rod Bolts
• ACL or King Race bearings
• New Subaru WRX 2.0L Crankshaft with improved oil passages
• Standard FHI Subaru case bolts

Benefits

Increased Performance Capabilities
• Improved Reliability

Please Note: IAG Recommends JE Pro Seal .039 inch head gaskets.

Applications

• EJ20 Engines

What’s In The Box?

• 1 – Complete IAG Short Block

References

• Installation Instructions, Warranty Info, and Break-In Documentation

Warranty

• IAG offers a one year/12,000-mile warranty