IAG Fire-Lock 2.5L Head Gaskets (1 Pair with Fire-Lock Rings) For 14mm Head Studs Only- Note Machine Work with IAG is REQUIRED. Our proprietary "Fire-Lock™" Head gasket system has been proven in our record-setting race cars to be the strongest Subaru head gasket system ever produced. To achieve these results, our engineers separated the combustion chamber sealing from the fluid sealing aspects of the head gaskets. These gaskets have been tested in excess of 1000 horsepower. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. The gaskets are manufactured from an asbestos-free composite raw material and feature silicone-based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assures maximum sealing for a Subaru EJ25 turbocharged engine. Features: Composite Material, IAG-Spec Alloy Ring, Specifically designed for 14mm Head Studs, Silicone Beading, 100mm Bore, .051" Thickness, Intended for High Horsepower, High Boost applications.
| 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 Fire-Lock 2.5L Subaru Head Gaskets (1 Pair w/ Fire-Lock Rings) for EJ25 / EJ257, 100mm, .051", for 14mm Head Studs |
| 17 |
Gray |
| 1721 |
Two Piece |
| 10 |
Composite with Silicone Beading |
| 3753 |
Alloy |
| 4098 |
100 |
| 9022 |
No |
| 3390 |
Performance |
| 19 |
0.051 |
| Description_SHO |
Cylinder Head Gasket |
| Description_INV |
IAG Performance Cylinder Head Gasket |
| Description_ASC |
Package Includes: 2 x Fire-Lock™ Head Gaskets, 4 x Fire-Lock™ Rings |
| Description_ASC |
The IAG Fire-Lock™ gaskets require machine work for installation. |
| Description_ASC |
If a block or cylinder head was previously o-ringed the groove must be filled and resurfaced before using this type of gasket. |
| Description_ASC |
These gaskets require IAG ARP 14mm head studs to achieve the required torque necessary for proper installation. |
| Description_ASC |
Due to the required torque, any block that was previously honed will need to go to the next size overbore. |
| Description_ASC |
Future servicing will require cylinder head resurfacing due to an imprint left from the Fire-Lock™ rings. |
| Description_KSW |
IAG Performance |
| Description_LAB |
Fire-Lock 2.5L Subaru Head Gaskets (1 Pair w/ Fire-Lock Rings) for EJ25 / EJ257 |
| Description_DES |
Fire-Lock 2.5L Subaru Head Gaskets (1 Pair w/ Fire-Lock Rings) for EJ25 / EJ257 |
| Description_APS |
Subaru: Baja 2004 - 2006, Subaru: Forester 2004 - 2013, Subaru: Impreza 2004 - 2014, Subaru: Legacy 2005 - 2013, Subaru: Outback 2005 - 2009, Subaru: WRX 2012 - 2016, Subaru: WRX STI 2013 - 2021 |
| Description_EXT |
IAG Fire-Lock 2.5L Subaru Head Gaskets (1 Pair w/ Fire-Lock Rings) for EJ25 / EJ257, 100mm, .051", for 14mm Head Studs |
| Description_MKT |
IAG Fire-Lock 2.5L Head Gaskets (1 Pair with Fire-Lock Rings) For 14mm Head Studs Only- Note Machine Work with IAG is REQUIRED. Our proprietary "Fire-Lock™" Head gasket system has been proven in our record-setting race cars to be the strongest Subaru head gasket system ever produced. To achieve these results, our engineers separated the combustion chamber sealing from the fluid sealing aspects of the head gaskets. These gaskets have been tested in excess of 1000 horsepower. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. The gaskets are manufactured from an asbestos-free composite raw material and feature silicone-based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assures maximum sealing for a Subaru EJ25 turbocharged engine. Features: Composite Material, IAG-Spec Alloy Ring, Specifically designed for 14mm Head Studs, Silicone Beading, 100mm Bore, .051" Thickness, Intended for High Horsepower, High Boost applications. |
| Description_FAB |
Unique Fire-Lock Rings help contain extreme cylinder pressures. Cylinder liners must be machined to accept the fire-lock rings. |
| Description_TLE |
IAG Performance Fire-Lock 2.5L Subaru Head Gaskets (1 Pair w/ Fire-Lock Rings) for EJ25 / EJ257, 100mm, .051", for 14mm Head Studs |
| Description_DEF |
Engine Cylinder Head Gasket |
