The IAG 1000+ Long Block is a complete, valve cover to valve cover, crate engine. It is the perfect option for ease of installation and gives you a premier "drop-in" engine.
This kit will support up to 1000+BHP applications. IAG's break-in instructions MUST be followed and the package must be professionally installed for the 12 months / 12k mile warranty to be applicable. All IAG Short Blocks are balanced and blueprinted.
Closed Deck Includes:
Case Halves - Converted to Closed Deck from brand new OEM Subaru case halves, bored and honed to 99.75mm.
Pinned Mains - Machine case for 9.5mm pinned mains and lined honed.
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 - Machined for 14mm Head Studs.
Pistons - IAG-Spec JE FSR 99.75mm 2618 Forged Pistons, Electroless Nickel Plated Tops & Ring area, Ring Set, .250" / .927" H13 Wrist Pins, Clips, (Perfect Skirt Coating and Offset Wrist Pins)
Connecting Rods - IAG-Spec Tri-Beam Connecting Rods with ARP 625+ Rod Bolts.
Rod / Main Bearings - ACL or King Race Bearings.
Crank - Billet Crank by Callies
Case / Main Bolts - ARP Main Bolts.
Stage 5 Heads:
Heads - Brand New Subaru OEM WRX STI Cylinder Head Castings
Machine Porting - CNC Ported Intake and Exhaust Runners
Intake Valves - Ferrea 37mm (+1mm) Comp Plus Intake Valves
Exhaust Valves - Ferrea 33mm (+1mm) Comp Plus Exhaust Valves
Springs / Retainers - Ferrea Dual Valve Springs & Titanium Retainers
Keepers - Ferrea Valve Keepers
Guides - Ferrea Copper / Bronze Valve Guides
Valve Seals - Ferrea Valve Stem Seals
Lifters - OEM Lifter Buckets
Camshafts - GSC 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
*If you need more information about this engine block, please don't hesitate to call us at 503-619-0055 for expert advice.
*All IAG Engine Blocks are engineered, balanced, and blueprinted per your order and shipped in crates by freight trucks. Please allow an extended shipping duration. Contact one of our specialists for more information.
- Subaru 04-05 Forester XT
- Subaru 05-06 Legacy GT
- Subaru 05-06 Outback XT
- Subaru 04-07 STI