Cometic Gaskets

The best Cometic Gaskets part in this collection for an EJ22 Subaru is its only entry: the Cometic Head Gasket EJ22E MLS 98MM .040 for Subaru EJ22 models, including the 1990-1996 Legacy, named in the product title. MLS, bore size and thickness are the three figures that decide whether a head gasket is right for a build, and this listing states all three: 98MM bore and .040 thickness. Check your engine code, year and model before ordering, because this gasket is specific to the EJ22 application in the title.

A head gasket seals the joint between the cylinder head and the engine block, holding combustion pressure in the cylinders and keeping coolant and oil in their separate passages. When an engine is apart for a rebuild or head repair, the gasket is replaced as a matter of course, and the replacement has to match the bore and thickness the build calls for. Choose by engine code first, then bore, then thickness.

This collection is a single-application shelf, so shop the surrounding engine ranges for the rest of a build: the full Cometic range, the wider Performance Head Gaskets and Engine Gaskets and Seals shelves, and internals in Connecting Rods. For build planning, read a guide to Subaru engine modifications.

Brands to know

Cometic Gaskets is carried in this store primarily for MLS head gaskets and gasket kits, and the main Cometic collection shows that breadth, from an 08-21 STI Street Pro gasket kit to a 100mm bore head gasket for EJ25 models. This separate shelf holds the older EJ22 application, useful precisely because EJ22 and EJ25 gaskets are not interchangeable. Order by engine code, not brand familiarity.

JE Pistons is the piston shelf most Subaru engine builders shop in the same pass as head gaskets, carried here for pistons and piston kits. A gasket's bore figure only makes sense alongside the pistons planned for the block, so builders usually spec gasket and pistons together.

Wiseco is the other established piston name in this catalog, carried across a large range of applications. Set against JE, the comparison is the piston options listed for your engine and the bore sizes each offers, which then set the gasket bore you need.

FAQ

Which engines does this Cometic gasket fit?

The title names Subaru EJ22 models, including the 1990-1996 Legacy, for the EJ22E application. It is not listed for EJ25 or other engines in this collection, so check your engine code before ordering.

What do 98MM and .040 mean?

They are the bore and thickness figures in the product title: a 98MM bore and .040 thickness. Both need to match what your build calls for, since changing gasket thickness also changes the assembled clearances in the engine.

What does MLS mean?

MLS stands for multi-layer steel, the construction Cometic uses across its head gasket range in this store. The product title gives MLS as this gasket's type, alongside its bore and thickness.

Should I replace a head gasket when the engine is apart?

Yes, as standard practice: a head gasket is a single-use seal, and fitting a fresh, correctly specified gasket is the usual step whenever the head comes off for a rebuild or repair. Confirm the specification with your engine builder before ordering.