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IAG Performance / Crest CNC Stage X 2.5L Subaru Billet Aluminum Short Block For WRX, STI, LGT, FXT

by IAG
SKU IAG-ENG-SX25
Original price $17,599.99 - Original price $17,599.99
Original price
$17,599.99
$17,599.99 - $17,599.99
Current price $17,599.99
  Lease to own   Pay as low as   $/week

IAG Performance / Crest CNC Stage X 2.5L Billet Aluminum Short Block Includes:

  • Case Halves -Crest Billet / Sleeved Case Halves
  • Pinned Mains -Machine case for 9.5mm pinned mains.
  • Fire-Lock -IAG Fire-Lock™ receiver groove machining, latest solution to prevent head gasket failure on high horsepower and high boost Subaru's - *IAG Fire-Lock™ head gaskets required
  • Machining -Machined for 14mm Head Studs *(Studs sold separately / Note the proper head gaskets or head gasket modifications are required for proper fitment with 14mm studs.
  • Pistons -JE 99.5mm FSR 2618 custom forged pistons, JE Pro Seal Ring Set, .250" H13 .927" tool steel wrist pins, Clips
  • Connecting Rods -Custom IAG-Spec +2mm Tri-Beam Forged Connecting Rods with ARP 625+ Rod Bolts.
  • Rod / Main Bearings -ACL Race Bearings
  • Crank -IAG-Spec Billet 79mm Crankshaft
  • Case / Main Bolts -ARP Case Bolts

Compression Ratio:

  • 9.1:1 on on D Cylinder Heads (EJ255)
  • 8.8:1 on B, V and W EJ257 Heads with IAG Fire-Lock™ head gaskets..

Additional Options Available:

  • Head Studs -IAG / ARP Spec 14mm head studs, nuts, and washers
  • Oil Pumps -IAG Stage 2 CNC Ported 11mm EJ Oil Pump
  • IAG Oil Pickup -Upgraded oil pickup featuring heavy gauge steel tubing, 2 point bracket & mesh filter
  • IAG Oil Baffle -Upgraded oil control baffle and windage tray
  • IAG Oil Pickup & Baffle Set -Upgraded oil pickup, oil control baffle, and windage tray
  • Hardware / Seal Option -(Includes: Wrist pin plugs, washers, separator cover, bolts, etc. In case you don't want to transfer from the original engine).

Head Gasket Required:

  • *IAG Fire-Lock .051" Head Gaskets with IAG-Spec Alloy Ring Set* PN# IAG-ENG-1741

Power Rating: