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  • IAG Performance Stage 1 FA20 Short Block - WRX VA (15-20)
  • IAG Performance Stage 1 FA20 Short Block - WRX VA (15-20)
  • IAG Performance Stage 1 FA20 Short Block - WRX VA (15-20)
  • IAG Performance Stage 1 FA20 Short Block - WRX VA (15-20)
  • IAG Performance Stage 1 FA20 Short Block - WRX VA (15-20)

IAG Performance Stage 1 FA20 Short Block - WRX VA (15-20)

$6,799.00

The IAG Stage 1 short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then the case is bored and honed to 86.1mm on our in-house Sunnen SV-30 the most advanced automotive cylinder hone available. IAG‘s in-house honing process is able to set piston to wall clearances tighter for a quieter running engine. The short block is measured and assembled using a new 2015-19 Subaru 2.0L WRX crankshaft that is matched to King main bearings. IAG-Spec H-Beam rods with ARP2000 rod bolts are utilized along with King or ACL rod bearings. The case halves are sealed with new OEM case bolts and sealant. Finally, IAG-Spec 86.1mm Forged Pistons are spec'd and installed along with an OEM oil plug finishing off the short block.

 

Stage 1 FA20 Includes:

  • Case Halves - Brand new OEM Subaru FA20 case halves
  • Case Machining - Modified for improved oiling
  • Case Machining - Bored and honed to 86.1mm
  • Pistons - IAG-Spec 86.1mm Forged Pistons, Ring Set, and .150" x 2.250" Chromoly Wrist Pins
  • Connecting Rods - IAG-Spec H-Beam with ARP2000 Rod Bolts
  • Rod Bearings - ACL or King XPG
  • Main Bearings - King XPG
  • Crankshaft - New Subaru FA20 DIT WRX crankshaft
  • Case / Main Bolts - Standard Subaru case bolts
  • Hardware - OEM Oil Plug - preinstalled at inner oil pan location


Additional Options Available:

  • Oil Plugs & Rear Main Seal - (x1) 11021AA190 Plug, (x2) 11024AA141 Plugs , (x1) 806792010 Rear Main Seal

 

Power:

  • The IAG Stage 1 Short Block has a power output rating of 550BHP.

 

Notes:

  • All IAG Short Blocks are balanced and blueprinted.
  • Compression Ratio: 10.0:1 (.6 lower than stock compression) on standard gasket thickness.