ej20t head gaskets

[Guest]

I see there is alot of different type head gaskets available for wrx ej20ts. which is best recomended? fibre? steel? will a .5mm steel work ok when there was a fibre gasket fitted before? will it affect the compression to much? is for a v2 wrx td05 engine.

[funkytown]

see your other post. go with standard saving $$ - get these from armstrongs.. they are standard cardboard/fibre

can get special heat resisting ones.. but they are well in excess of $200.

[Guest]

sorry dont get what you mean (see your other post) I have priced up a heap from different places and segidins sells steels which are alot cheaper than others, ie repco, subaru etc

[funkytown]

sorry, look in motor and turbo - they talking about it there too.

I would go with surbaru genuine. They are close to $20 for the set. Non genuine (nearly) always ends in tears

[readosnr]

go with a steel headgasket.

the earlier ej20's (bc and gc/gf type a,b and c) use the fibre gasket, while the higher horse engines which came in later (ej20k in gc being the ver 3 onwards, and the ej20r in the gtb manual model) came with the thicker 3 layer steel gaskets. the size and the layout of the holes are exactly the same just the material they are made from are different.

ver 5 onwards (ie phase 2 engines) had a different block design and they changed the head gaskets to single layer steel items (ie distance from piston to cylinder head changed)

putting ver 5 head gaskets into a ver 4 would reduce the compression ratio and vise versa

[Guest]

thanks, I have got some 3layer steel gaskets now, they are thinner than the fibre ones that came out but have been assured from segadins they will work fine. Only $100 for the pair. the best/cheapest i found.

[Markmcrs]

Playing with head gasket thickness's when you don't know what you're doing is a recipe for disaster...

I have done dozens and dozens of head gaskets on many different EJ motors.

I learn't a few things the hard way whilst 'trying' different things.

I once put 99 WRX head gaskets on a V3 Sti bottom end/97 GTB heads combo and that resulted in valves just touching pistons - no damage was done thankfully.

That engine was running bulk compression and would ping on any more than 14psi with BP Ultimate - we stuck some race fuel in, ran 17-18psi and did a 12.5 in a full weight TT GTB wagon.

As for the quality, I always go for genuine Subaru head gaskets.

I am yet to see ANY difference between the stock fibre gaskets and multi layer steel(MLS) gaskets in terms of durability and resistance to big boost/excessive heat etc.

I have fitted fibre N/A EJ22 head gaskets to EJ22 turbo builds capable of 400+flywheel horsepower - heck, I've even fitted 2.5lt MLS head gaskets to my own 2.2 lt motor which ran 25psi all day long.

Bottom line, head gaskets aren't a weak point on EJ motors up to and beyond a genuine 400HP at the fly so my advice is to put back what was previously there.

Changing the thickness can have more than 1 negative repercussion.

[Ryan]

Yeah I got my complete gasket set from STA Parts a couple of days ago, steel head gasket set etc.