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IAG Performance 600 Long Block WRX FA20F 600 FA20F Timed Long Block Engine 15-21 WRX

Engine Long Block


IAG 600 FA20F DIT Timed Long Block Engine for 2015-21 WRX

  • These engines offer significant ease of installation for customers seeking a complete "drop-in" engine package for their WRX.
Pricing: $13,999.99

Free ground shipping on all order over $100.00 (some exclusions may apply)


Subaru: WRX 15 - 21

  • IAG 600 Long Block Engine Includes: Stage 2 Short Block Includes: Case Halves - Brand new OEM Subaru FA20 case halves, bored and honed to 86.1mm, 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" 9310 Tool Steel Wrist Pins, Connecting Rods -IAG-Spec H-Beam / ARP2000 Rod Bolts, Rod Bearings - ACL or King XPG, Main Bearings - King XPG or IAG Spec, Crankshaft -New Subaru FA20 DIT WRX crankshaft, Case / Main Bolts -Standard Subaru case bolts, Hardware - OEM Oil Plug - comes preinstalled at the oil pan location, Stage 1 FA20F DIT Cylinder Heads: Heads - Brand New Subaru OEM WRX AW Cylinder Head Castings, Intake Valves - GSC 36mm (Standard) Intake Valves, Exhaust Valves - GSC 32mm (Standard) Exhaust Valves, Springs / Retainers - Kelford Dual Valve Springs & Titanium Retainers, Guides - OEM Valve Guides, Valve Seals - GSC Valve Stem Seals, Lifters - OEM Subaru Lifters, Camshafts - Kelford 264-EZ Camshafts, Multi-Angle Valve Job, Machined Cam Lobe Clearance, Resurface, Ultrasonic Cleaning, Final Lash, Gaskets, Hardware & Accessories: Head Studs - ARP 2000 11mm Set, Head Gaskets - OEM, Valve Cover Gaskets - OEM, Cam Seals - OEM, Valve Covers - OEM, Timing Components - OEM, Oil Pump/Timing Cover - OEM, Wrist Pin Seal, Rear Main Seal & Separator Kit, Crankshaft Woodruff Key, Compression Ratio: 10.6:1 compression on standard gasket thickness.
  • If the previous engine experienced an internal failure then all oiling components (i.e. cooler, pump, pickup, cam gears, and solenoids, etc) as well as other necessary components as per your installer's recommendations, must be replaced during installation.
  • Please review the PDF document below regarding installation, break-in procedures and warranty information.

The IAG Hand-Built 600 Subaru FA20F (DIT) Long Block Package is a complete, valve cover to valve cover, timed, crate engine. These engines offer significant ease of installation for customers seeking a complete "drop-in" engine package for their 2015+ WRX. All components included are NEW and there is NEVER A CORE CHARGE required. When a OEM rod breaks it causes catastrophic damage inside the engine. The IAG 600 Long Block features IAG Spec H Beam connecting rods with ARP 2000 hardware, which are a significant upgrade from the OEM components. Each Stage 2 WRX Short Block features IAG Spec JE FSR 86.1mm Forged Pistons. These 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. FSR forgings reduce mass and wear caused by friction without sacrificing strength. The pistons are secured to the rods with .905 x 2.250" x .150" wall 9310 tool steel wrist pins with Tru Arc locks. The Stage 1 Head Package starts with brand new AW20 WRX OEM head castings that feature our multi-angle valve job that suits the flow characteristics of new GSC valves. The head decks are resurfaced and then ultrasonically cleaned. Next, the lower portion of the heads are reassembled using Kelford Dual Cylindrical Valve Springs and Retainers along with new GSC viton valve stem seals. Mating the heads to the block are OEM head gaskets and 11mm ARP 2000 head studs. The Stage 1 Heads also feature Kelford's new 264-EZ Camshafts, which are proven to add a significant bump in power across the rev range without sacrificing driveability. Valve lash is measured and new OEM valve covers are added. Completing the long block, new OEM timing components and a Subaru FA20 timing chain cover with built-in oil pump are installed. IAG's Break-in Instructions MUST be followed, and the long block must be professionally installed for the 12 month/12,000 mile workmanship warranty to be applicable.


  • IAG-ENG-4110
  • IAG-ENG-4110
  • 887753836335
  • IAG Performance
  • New


Shipping Information

  • Item Requires Shipping
  • 285.0 lbs.
  • W32.0000” x H28.0000” x L46.0000”
  • Free ground shipping on all order over $100.00 (some exclusions may apply)

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