Gaskets

• Head gaskets: Cometic MLS and MLX multi-layer steel head gaskets, Nitto DBS Metal Head Gaskets and HKS Grommet Type Head Gaskets.
• Gasket kits: Nitto Full Gasket Kits, Engine Gasket Kits, Hot Side Metal Gasket Kits and Intake & Exhaust Metal Gasket Kits, plus the Toyota OEM Overhaul Gasket Kit for the G16E-GTS.
• Intake and throttle gaskets: Radium Engineering intake manifold and IACV gaskets, GrimmSpeed throttle body and TGV-to-engine gaskets, and the COBB Tuning TGV Shaft Seal Kit.
• Turbo and ancillary gaskets: Subaru OEM turbo-to-downpipe and up-pipe-to-turbo gaskets, and the Radium Engineering universal coolant tank gasket.

Related engine categories:

• Head Studs and Engine Fasteners
• Pistons
• Rods, Cranks and Bearings
• Valve Stem Seals
• Timing Components
• All Engine Internals
• All brands

• Engine code: Gaskets are matched to the engine, not just the car. The engines covered here include the Nissan SR20DET, RB25DET, RB25DET NEO and RB26DETT; the Toyota 2JZ-GTE and G16E-GTS; the Mitsubishi 4G63; the Subaru EJ20, EJ205, EJ20G, EJ25, EJ255 and EJ257; the Ford Barra 4.0; the Honda K20C1; and the Audi DAZA/DNWA 2.5T FSI.
• Chassis code: Check that the listing covers your chassis. Examples include S13/S14/S15 Silvia, 180SX and 200SX; R32/R33/R34 Skyline GT-R; R33 and R34 Skyline; WC34 Stagea; JZA80 Supra; JZS147/JZS161 Aristo; CN9A/CP9A/CT9A Lancer Evolution IV–IX; GXPA16 GR Yaris; GZEA14 GR Corolla; BA/BF/FG/FG X Falcon; SX/SY/SZ Territory; and FK8/FL5 Civic Type R.
• Bore size: Head gaskets are made for a specific bore. For example, Subaru EJ head gaskets are listed at 93mm, 93.5mm, 100mm and 101mm. If your engine has been bored oversize, match the gasket to the finished bore.
• Thickness: Where a listing states a thickness, such as 0.8mm or .055", that figure affects the engine's compression ratio. Choose it to suit your build.
• Single or kit: Some head gaskets are sold singly, and a boxer engine such as the Subaru EJ has two cylinder heads. Check each gasket kit listing for its contents.

Installation by a professional is recommended. Sealing surfaces should be clean and flat before a new gasket goes on. Fasteners should be tightened to the engine or fastener manufacturer's specification and sequence.

Head gasket jobs often happen alongside other work. Depending on your build, you may also need head studs and engine fasteners, valve stem seals or timing components.

Do the Subaru EJ head gaskets come as a pair?
The Cometic EJ head gaskets in this collection are sold singly. The EJ is a boxer engine with two cylinder heads, so two gaskets are needed to do both sides.

How do I choose the right head gasket bore size?
Match the gasket bore to your engine's cylinder bore. If the block has been bored oversize, choose the gasket to suit the finished bore.

Do you stock genuine OEM gaskets?
Yes. The range includes the Toyota OEM Overhaul Gasket Kit for the G16E-GTS GR Yaris and GR Corolla, plus Subaru OEM turbo-to-downpipe and up-pipe-to-turbo gaskets for EJ20 and EJ25 models.

Which Subaru models do the EJ turbo gaskets suit?
The Subaru OEM turbo gaskets are listed for WRX, STI, Forester and Liberty models with EJ20 or EJ25 engines. Check each listing for the exact fitment.