IAG Performance 800 Series FA20 DIT Long Block 2015-2021 WRX

IAG Performance 800 Series FA20 DIT Long Block 2015-2021 WRX

The IAG 800 Series long block is a complete, timed FA20F (DIT) crate engine, valve cover to valve cover, for the 2015-2021 Subaru WRX. It combines an IAG 800 closed deck short block with IAG CNC pocket ported heads and new timing components already fitted. IAG supplies every component new.

What's included

• Short block: New Subaru FA 2.0L case halves machined for improved oiling, converted to closed deck on a Haas VF-4SS mill (inserts heat-and-freeze installed, coolant passages retained)
• Head sealing: O-ring grooves with copper wire; drilled and tapped for 1/2" head studs
• Bore: 86.1mm, deck plate bored and honed on a Sunnen SV-30
• Crankshaft and bearings: New 2020 Subaru 2.0L WRX crankshaft with ACL or King main bearings; King or ACL rod bearings
• Connecting rods: IAG-Spec H-Beam with ARP 2000 rod bolts
• Pistons: IAG-Spec JE FSR 86.1mm forged, 2618 T6 alloy, asymmetrical skirt; .905 x 2.250" x .210" wall 9310 tool steel wrist pins with Tru Arc locks
• Case hardware: New OEM case bolts and sealant; OEM oil plug
• Heads: New OEM Subaru of America castings, OEM guides pressed out, CNC pocket ported on a Centroid 5-axis, drilled for larger head studs
• Valvetrain: Kelford "A" camshafts; new OEM cam towers, rockers, pivots and valve shim caps
• Timing: All new timing components pre-installed

Before you order

Listed for the 2015-2021 WRX with the FA20F. The installer moves over the manifolds, sensors, injectors and external accessories, and IAG says most installs take about a day. Ask us for the full gasket and head stud specification before ordering. Send us your VIN or engine code and we will confirm fitment before you order.

See also: FA20 vs EJ25 · head studs vs head bolts · used vs rebuilt engines · engine replacement checklist · what comes with a long block · is it worth replacing an engine? · signs of a blown head gasket · Subaru WRX and STI parts · FA20 vs FA24 · subaru fa20 / fa24 · IAG Performance Subaru blocks and all engines by engine code.

Shipping and returns

Shipping is a flat $80.00 per order to US addresses, and returns are free within 15 days of delivery. Questions before you order? Ask a parts specialist.