IAG Performance IAG 750 CNC Pocket Ported D25 Comp Cylinder Head - GSC S1 Cams & Lifters IAG-ENG-H750DL

The IAG 750 CNC Pocket Ported Competition Cylinder Heads are designed with the weekend racer in mind. These heads work great for cars with some race track duty (road, rally, auto-x, drag) and are designed to support up to 750 BHP with supporting mods. These heads include upgraded GSC Standard Size Valves, GSC Viton Valve Stem Seals, IAG Stage 1 Valve Springs with Titanium Retainers, and OEM Keepers. GSC S1 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 750 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 S1 Camshafts and OEM Lifter Buckets for valve adjustment. The bare castings are visually inspected and then fixtured into our in-house Centroid 5-axis CNC Machine. The Centroid CNC ports the intake and exhaust runners under the valves and blends them to the valve seat. Once the Centroid completes the port process, the heads undergo a cam clearance machining process which removes material from the lifter area where larger lift and duration cam profiles are known to contact the castings. 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 standard size valves. At this point, the heads' decks are resurfaced using our TS-3000 BlockMate, which cuts the aluminum to a smooth, even finish. Next, the heads are ultrasonically cleaned to remove debris and oils from the machining process. Finally, the heads are reassembled using IAG Stage 1 Single Valve Springs and Titanium Retainers along with GSC Viton stem seals.

This Part Fits:

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

Specifications:

Prop 65 - Short Label	WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R or CR)	CR
Prop 65 Yes/No	Yes
Title	IAG 750 CNC Pocket Ported D25 Competition Cylinder Heads Package w/ GSC S1 Cams & Lifters for 06-14 WRX, 06-13 FXT, 07-09 LGT
Power Rating	750 BHP
306	Yes
10271	Yes
10582	Yes
10267	Yes
10266	Yes
6629	32
9795	104.37
9956	Stainless Steel
10249	6
3390	Performance
6628	36
9794	104.40
9797	Stainless Steel
10248	6
14	20
10	Aluminum
30	Yes
10364	No
10269	Viton
8789	Yes
9798	Titanium
10024	Yes
8788	Yes
9799	Yes
627	72
24	16
Description_SHO	750 Cylinder Head
Description_INV	IAG 750 Comp Cylinder Head Package
Description_ASC	IAG 750 CNC Pocket Ported Competition Cylinder Head Package Includes: (x2) Brand New Subaru OEM Cylinder Head Castings, (x8) GSC 36mm (Standard) Intake Valves, (x8) GSC 32mm (Standard) Exhaust Valves, (x16) IAG Stage 1 Single Valve Springs & Titanium Retainers, (x16) GSC Valve Guides, (x16) GSC Valve Stem Seals, IAG Performance CNC Pocket Porting, Multi-Angle Valve Job, Drilled for 1/2" or 14mm Head Studs, Machined Cam Lobe Clearance, Resurface, Ultrasonic Cleaning. Optional Camshaft Package Also Includes: GSC S1 Camshafts, (x16) OEM Lifter Buckets, Bench Valve Lash Service (Final Lash Should be Checked and Adjusted Once Heads are Installed).
Description_ASC	For use with stock cams or mild duration cams.
Description_ASC	Assembly and professional installation recommended.
Description_ASC	Workmanship/parts warranty will only be available for professionally installed cylinder heads.
Description_KSW	IAG Performance
Description_LAB	750 CNC Pocket Ported D25 Comp Cylinder Head Package w/ GSC S1 Cams & Lifters
Description_DES	IAG 750 CNC Pocket Ported D25 Comp Cylinder Head - GSC S1 Cams & Lifters
Description_APS	Subaru: Baja 04 - 06 Turbo
Description_EXT	IAG 750 CNC Pocket Ported D25 Competition Cylinder Heads Package w/ GSC S1 Cams & Lifters for 06-14 WRX, 06-13 FXT, 07-09 LGT
Description_MKT	The IAG 750 CNC Pocket Ported Competition Cylinder Heads are designed with the weekend racer in mind. These heads work great for cars with some race track duty (road, rally, auto-x, drag) and are designed to support up to 750 BHP with supporting mods. These heads include upgraded GSC Standard Size Valves, GSC Viton Valve Stem Seals, IAG Stage 1 Valve Springs with Titanium Retainers, and OEM Keepers. GSC S1 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 750 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 S1 Camshafts and OEM Lifter Buckets for valve adjustment. The bare castings are visually inspected and then fixtured into our in-house Centroid 5-axis CNC Machine. The Centroid CNC ports the intake and exhaust runners under the valves and blends them to the valve seat. Once the Centroid completes the port process, the heads undergo a cam clearance machining process which removes material from the lifter area where larger lift and duration cam profiles are known to contact the castings. 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 standard size valves. At this point, the heads' decks are resurfaced using our TS-3000 BlockMate, which cuts the aluminum to a smooth, even finish. Next, the heads are ultrasonically cleaned to remove debris and oils from the machining process. Finally, the heads are reassembled using IAG Stage 1 Single Valve Springs and Titanium Retainers along with GSC Viton stem seals.
Description_FAB	New Head Castings with Upgraded GSC Standard Size Valves, IAG Stage 1 Valve Springs with Titanium Retainers
Description_FAB	Power: The IAG 750 Cylinder Head Package has a power output rating of 750 BHP.
Description_TLE	IAG Performance 750 CNC Pocket Ported D25 Competition Cylinder Heads Package with GSC S1 Cams & Lifters for 06-14 WRX, 06-13 FXT, 07-09 LGT
Description_DEF	Engine Cylinder Head Set