Description

The IAG 1150 CNC Ported Drag Cylinder Heads are designed for drag racing and competition. These fully CNC ported heads provide a significant upgrade in long term performance over the IAG 950 heads. These heads work great for cars where getting the most power with maximum reliability is the goal. The IAG 1150 heads are the best heads available for high-horsepower drag racing. They are designed to support up to 1150 BHP with supporting mods. These heads include upgraded Ferrea Valves, GSC Viton Valve Stem Seals, Upgraded GSC Valve Guides, Ferrea Dual Drag Valve Springs with Titanium Retainers, and Ferrea Keepers. GSC S2 or S3 Camshafts are available with OEM valve lifter buckets. We also offer an optional chamber modification service (see below) for EJ20 heads to allow use on EJ25 short blocks. Each IAG 1150 Cylinder Head Set starts with new OEM castings from Subaru of America. The first step is to select your Year and Model of vehicle so that we may provide you with the right castings to fit your project. Next, you'll select whether or not you want to include our optional GSC camshaft package. If selected, these heads will include new GSC S2 or S3 Camshafts and OEM Lifter Buckets for valve adjustment.

Specifications

What's Included

  • (x2) Brand New Subaru OEM Cylinder Head Castings
  • (x8) Ferrea 37mm (+1mm) Comp Plus Intake Valves
  • (x8) Ferrea 33mm (+1mm) Comp Plus Exhaust Valves
  • (x16) Ferrea Dual Drag Valve Springs & Titanium Retainers
  • (x16) GSC Manganese Bronze Valve Guides
  • (x8) GSC 6mm Intake Valve Stem Seals
  • (x8) GSC 6mm Exhaust Valve Stem Seals
  • (x16) OEM Lifter Buckets
  • IAG Performance CNC Porting
  • Multi-Angle Valve Job
  • Drilling for compatibility with ½" or 14mm Head Studs
  • Machined Cam Lobe Clearance
  • Resurface
  • Ultrasonic Cleaning
  • Optional
  • GSC S2 Camshafts
  • GSC S3 Camshafts
  • (x16) OEM Lifter Buckets
  • Bench Valve Lash Service (Final Lash Should be Checked and Adjusted Once Heads are Installed)

Compatibility

  • 2006 Subaru Baja Turbo
  • 2008 Subaru Forester 2.5 XT
  • 2008 Subaru Forester Sports 2.5 XT
  • 2008-2009 Subaru Forester XT
  • 2006-2013 Subaru Forester XT Limited
  • 2010-2013 Subaru Forester XT Premium
  • 2010-2012 Subaru Forester XT Sports
  • 2011-2013 Subaru Forester XT Touring
  • 2009-2010 Subaru Impreza 2.5 GT
  • 2006-2014 Subaru Impreza WRX
  • 2010 Subaru Impreza WRX GT
  • 2006-2014 Subaru Impreza WRX Limited
  • 2009-2014 Subaru Impreza WRX Premium
  • 2010 Subaru Impreza WRX SE
  • 2006-2007 Subaru Impreza WRX TR
  • 2010-2012 Subaru Legacy 2.5GT
  • 2006-2013 Subaru Legacy GT
  • 2007-2009 Subaru Legacy GT Limited
  • 2006-2009 Subaru Legacy GT spec.B
  • 2008 Subaru Outback 2.5 XT
  • 2006-2008 Subaru Outback XT
  • 2006-2009 Subaru Outback XT Limited
  • 2012-2014 Subaru WRX Base
  • 2013-2014 Subaru WRX Limited
  • 2014 Subaru WRX SE

The IAG 1150 CNC Ported Drag Cylinder Heads are designed for drag racing and competition. These fully CNC ported heads provide a significant upgrade in long term performance over the IAG 950 heads. These heads work great for cars where getting the most power with maximum reliability is the goal. The IAG 1150 heads are the best heads available for high-horsepower drag racing. They are designed to support up to 1150 BHP with supporting mods. These heads include upgraded Ferrea Valves, GSC Viton Valve Stem Seals, Upgraded GSC Valve Guides, Ferrea Dual Drag Valve Springs with Titanium Retainers, and Ferrea Keepers. GSC S2 or S3 Camshafts are available with OEM valve lifter buckets. We also offer an optional chamber modification service (see below) for EJ20 heads to allow use on EJ25 short blocks. Each IAG 1150 Cylinder Head Set starts with new OEM castings from Subaru of America. The first step is to select your Year and Model of vehicle so that we may provide you with the right castings to fit your project. Next, you'll select whether or not you want to include our optional GSC camshaft package. If selected, these heads will include new GSC S2 or S3 Camshafts and OEM Lifter Buckets for valve adjustment.

  • (x2) Brand New Subaru OEM Cylinder Head Castings
  • (x8) Ferrea 37mm (+1mm) Comp Plus Intake Valves
  • (x8) Ferrea 33mm (+1mm) Comp Plus Exhaust Valves
  • (x16) Ferrea Dual Drag Valve Springs & Titanium Retainers
  • (x16) GSC Manganese Bronze Valve Guides
  • (x8) GSC 6mm Intake Valve Stem Seals
  • (x8) GSC 6mm Exhaust Valve Stem Seals
  • (x16) OEM Lifter Buckets
  • IAG Performance CNC Porting
  • Multi-Angle Valve Job
  • Drilling for compatibility with ½" or 14mm Head Studs
  • Machined Cam Lobe Clearance
  • Resurface
  • Ultrasonic Cleaning
  • Optional
  • GSC S2 Camshafts
  • GSC S3 Camshafts
  • (x16) OEM Lifter Buckets
  • Bench Valve Lash Service (Final Lash Should be Checked and Adjusted Once Heads are Installed)
  • 2006 Subaru Baja Turbo
  • 2008 Subaru Forester 2.5 XT
  • 2008 Subaru Forester Sports 2.5 XT
  • 2008-2009 Subaru Forester XT
  • 2006-2013 Subaru Forester XT Limited
  • 2010-2013 Subaru Forester XT Premium
  • 2010-2012 Subaru Forester XT Sports
  • 2011-2013 Subaru Forester XT Touring
  • 2009-2010 Subaru Impreza 2.5 GT
  • 2006-2014 Subaru Impreza WRX
  • 2010 Subaru Impreza WRX GT
  • 2006-2014 Subaru Impreza WRX Limited
  • 2009-2014 Subaru Impreza WRX Premium
  • 2010 Subaru Impreza WRX SE
  • 2006-2007 Subaru Impreza WRX TR
  • 2010-2012 Subaru Legacy 2.5GT
  • 2006-2013 Subaru Legacy GT
  • 2007-2009 Subaru Legacy GT Limited
  • 2006-2009 Subaru Legacy GT spec.B
  • 2008 Subaru Outback 2.5 XT
  • 2006-2008 Subaru Outback XT
  • 2006-2009 Subaru Outback XT Limited
  • 2012-2014 Subaru WRX Base
  • 2013-2014 Subaru WRX Limited
  • 2014 Subaru WRX SE

Best Sellers