The IAG Performance Hand-Built 800 Subaru FA20F (DIT) is a great choice for those looking to get more out of their modified WRX. Each 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+ Subaru WRX. The Long Blocks feature a combination of our proven IAG Performance Short Block and Cylinder Head packages, along with other race-proven components to complete the assembly. When paired with our Long Block Installation Packages, you have a true plug-and-play solution to get you back on the road, FAST! All components included are BRAND NEW and there is NEVER A CORE CHARGE required.
SOLD COMPLETE, TIMED
& READY TO INSTALL
Every IAG 800 FA20 Long Block is sold complete and ready to install. Since their introduction to the WRX lineup in 2015, the FA20F has proven to be one of the more difficult Subaru engines to work on, especially for those who are inexperienced with the platform. The timing system on these engines is complicated. One wrong move can leave you needing a new set of valves. In building the IAG Long Block line we set out to make installation as easy as possible. To that end, we have decided to only offer the FA20 long blocks with all new timing components pre-installed. This means all your mechanic needs to do is swap over the manifolds, sensors, injectors, and external accessories to get you back on the road ASAP. Most installations can be completed in a day.
BUILT WITH 100% NEW COMPONENTS
IAG 800 FA20F (DIT) CYLINDER HEAD PACKAGE
Each IAG 800 FA20 DIT Cylinder Head Set starts with new OEM castings from Subaru of America. For these long blocks we've also included Kelford "A" camshafts as well as new OEM cam towers, rockers, pivots, and valve shim caps.
The bare castings are visually inspected and the OEM guides are pressed out. The heads are then fixtured into our in-house Centroid 5-axis CNC Machine, one of the most advanced precision engine machining equipment in the world. The Centroid CNC performs a "pocket port" of the area under the valves, enlarging and blending the opening under the valves. The benefit of CNC porting is not only an efficient way of machining the heads it also offers consistent port results that are hard to achieve by hand. Once the Centroid completes the porting process the heads are drilled to fit larger 1/2" or 14mm head studs which are commonly used in high horsepower builds. Next, the OEM press-fit freeze plugs are removed, to avoid a common known failure in which they loosen and leak coolant into the engine oil as well as externally. To eliminate this problem each head is tapped and threaded plugs are installed. At this point, GSC Manganese-Bronze valve guides that are shaped to improve airflow are pressed into place then all the new intake and exhaust guides are diamond-honed in our honing station. The heads are then fixtured in our Newen Valve Guide and Seat Machine to cut all intake and exhaust seats with a multi-angle valve job that suits the flow characteristics of GSC's +1mm valves. The heads decks are then resurfaced using our TS-3000 BlockMate that cuts the aluminum to a smooth even finish. To remove debris and oils from the machining process, the heads are ultrasonically cleaned. Finally, the heads are reassembled using Kelford Dual Cylindrical Valve Springs and Retainers along with GSC Viton stem seals.
The IAG 800 FA20 WRX Head Package also features Kelford's new 272-A Camshafts, which are proven to add a significant bump in power across the rev range without sacrificing driveability. The cams are installed in the upper cam tower assembly and attached to the lower portion of the head casting. Valve lash is carefully measured and set at this time using new, OEM shims for proper clearance. New OEM valve covers are added for a complete valve cover-to-valve cover assembled long block. Once assembled, we add new OEM timing components and a Subaru FA20 timing chain cover with built-in oil pump.
IAG 800 Timed Long Block Engine Includes:
IAG 800 FA20 2.0L 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
- O-Ringing - Machine and O-Ring Deck Surface
- Head Studs - Machine Case for 1/2" head studs - *Head studs are sold separately
- Pistons - IAG-Spec 86.1mm Forged Pistons, Ring Set, and .210" x 2.250" Chromoly Wrist Pins.
- Connecting Rods - IAG-Spec H-Beam / ARP2000 Rod Bolts
- Rod - ACL or King XPG
- Main Bearings -OEM or King XPG
- 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
Compression Ratio:
- 10.5:1 compression on standard gasket thickness.
IAG 800 CNC Pocket Ported FA20 DIT Cylinder Heads Package Includes:
- (x2) Brand New Subaru OEM AW20 FA20 WRX DIT Cylinder Head Castings
- (x8) GSC 35mm (+1mm) Intake Valves
- (x8) GSC 30mm (+1mm) Exhaust Valves
- (x16) Kelford Dual Cylindrical Valve Springs & Retainers
- (x16) GSC Manganese-Bronze Valve Guides
- (x16) GSC Valve Stem Seals
- IAG Performance CNC Pocket Porting
- Multi-Angle Valve Job
- Drilling for compatibility with ½" or 14mm Head Studs
- Threaded Coolant Plug Upgrade
- Resurface
- Ultrasonic Cleaning
- Kelford "A" 272 Camshafts
- (x2) OEM Cam Towers & Hardware
- (x16) OEM Rocker Pivots
- (x16) OEM Lifters
- (x16) OEM Valve Lash Caps
- Valve Lash Service
Gaskets, Hardware & Accessories:
- Head Studs - ARP 2000 1/2" 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
