RallySport Direct now carries highly sought-after high-performance upgrades and accessories brought to you by IAG Performance.
On this page, you are looking at the IAG 900 Long Block. This package is a complete, valve cover to valve cover, crate engine. It is the perfrect option for ease of installation and gives you a premier "drop in" engine. This kit will support up to 900BHP applications. IAG's break-in instructions MUST be followed and the package must be professionally installed for the 12 month / 12k mile warranty to be applicable. All IAG Short Blocks are balanced and blueprinted.
Here is what the package contains:
IAG Magnum Closed Deck Includes:
Case Halves - Converted to Closed Deck using brand new Subaru OEM case halves, bored and honed to 99.75mm.
Fire-Lock - IAG Fire-Lock receiver groove machining, latest solution to prevent head gasket failure on high horsepower and high boost Subaru's - *IAG Fire-Lock head gaskets required
Head Studs - Machine Case for 14mm head studs
Pistons - IAG-Spec JE FSR 99.75mm 2618 Forged Pistons, Electroless Nickel Plated Tops & Ring area, Ring Set, .250" / .906" H13 Wrist Pins, Clips, (Perfect Skirt Coating and Offset Wrist Pins)
Connecting Rods - IAG-Spec Tuff H-Beam +2mm / ARP 625+ Rod Bolts.
Rod / Main Bearings - ACL or King Race bearings.
Crankshaft - Standard New Subaru Nitride Treated 2017+ STI Crankshaft.
Case / Main Bolts – Standard FHI Subaru case bolts.
Stage 4 Heads:
Heads - Brand New Subaru OEM WRX STI Cylinder Head Castings
Machine Porting - CNC Ported Intake and Exhaust Runners
Intake Valves - GSC 37mm (+1mm) Intake Valves
Exhaust Valves - GSC 33mm (+1mm) SuperAlloy Exhaust Valves
Springs / Retainers - GSC Beehive Valve Springs & Retainers
Guides - GSC Maganese Valve Guides
Valve Seals - GSC Valve Stem Seals
Lifters - OEM Lifter Buckets
Camshafts - GSC Stage 2 or Stage 3 Billet Camshafts
Multi-Angle Valve Job
Machined Cam Lobe Clearance
Drilled For 14mm Heads Studs
Gaskets, Hardware & Accessories:
Head Studs - IAG / ARP 14mm Set
Head Gaskets - IAG Fire-Lock
Valve Cover Gaskets - OEM
Cam Seals - OEM
Valve Covers - OEM
Wrist Pin Seal, Rear Main Seal & Separator Kit
Crankshaft Woodruff Key