IAG Stage 3 FA20 Subaru Short Block for 2013-17 BRZ / FR-S (10.0:1 Compression Ratio)

IAG Stage 3 FA20 Subaru Short Block for 2013-17 BRZ / FR-S (10.0:1 Compression Ratio)
IAG Stage 3 FA20 Built Subaru Short Block

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MSRP: $4,199.99
Our Price: $3,999.99
Savings: $200.00

Quantity in Stock:(Out of Stock)
Availability: Discontinued
Part#: IAG-ENG-1322

Head Stud Machining*:
OE Size Head Studs PN# IAG-ENG-1322
1/2" Head Stud Service PN# IAG-ENG-1322-12 [Add $200.00]
14mm Head Stud Service PN# IAG-ENG-1322-14 [Add $200.00]

Seal Kit*:
Oil Plug & Seal Kit PN# IAG-ENG-1722 [Add $34.99]
Not Required

Description Warranty Information Applications

IAG Stage 3 FA20 Short Block 10.0:1 CR

The IAG Stage 3 short block starts with new Subaru BRZ FA 2.0L engine case halves that are bored and honed to 86.1mm on our in-house Sunnen SV-10. 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 2013-17 Subaru 2.0L FA20 crankshaft that is matched to King main bearings. Manley I-Beam rods are utilized along with King rod bearings. The case halves are sealed with new OEM case bolts and sealant. Finally, lower compression Manley 86.1mm 10.0:1 Compression Ratio Platinum Series Forged Pistons are spec'd and installed finishing off the short block. The lower compression ratio is perfect for BRZ / FR-S forced induction conversion applications.

Stage 3 FA20 Includes:
  • Case Halves - Brand new OEM Subaru BRZ FA20 case halves, bored and honed to 86.1mm
  • Pistons - Manley Platinum Series 86.1mm 10.0:1 Forged Pistons
  • Connecting Rods - Manley I-Beam / ARP Rod Bolts
  • Rod / Main Bearings - King XPG
  • Crankshaft - New Subaru FA20 DIT crankshaft
  • Case / Main Bolts - Standard Subaru case bolts
  • Hardware - OEM Oil Plug - preinstalled at the oil pan location

Additional Options Available:
  • Head Stud Machining - Machine case for 1/2 inch Head Stud Set, or 14mm head studs (Head studs sold separately)
  • Head Studs - IAG 1/2 inch ARP head stud set - $499.99, or IAG Spec 14mm head studs with ARP nut and washers - $550
  • Oil Plugs & Rear Main Seal - (x2) 11024AA141 Plugs, (x1) 806792010 Rear Main Seal - $34.99

Compression Ratio:
  • 10.0:1 (2.5 lower than stock compression) on standard gasket thickness.

*All IAG Short Blocks are balanced and blueprinted. This short block features a lower compression and is intended for forced induction applications.

Please review the PDF document below regarding installation, break-in procedures and warranty information.

PDF After Sale Document - Contains Shipping, Engine Care and Warranty Information

WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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