Jimbob

iTrader: (13)

I know you can get various manufacturers ones, but what sizes do the standard gaskets come in and what are their part numbers?

My 1995 EJ20 will have a 1.6mm standard gasket, but as the gasket has gone I may need the heads skimmed. Assuming there is material taken off, I will need an appropriately thicker gasket.

Does anyone have the sizes that Subaru offer as standard, or will I have to just get another 1.6mm gasket, as thats the largest they do, and have a marginally higher compression ratio??

I'm hoping that Subaru did do a small variety of gaskets larger than 1.6mm, but to date I am yet to find one.

AS Performance

iTrader: (4)

pretty much as big as they get.........

merlin24

iTrader: (1)

As above.
A light skim to the heads to correct any distorsion wont increase the CR that much to give you any problems provided they havent been skimmed before.

Mick

ditchmyster

iTrader: (7)

And there in lies the problem.

Jimbob

iTrader: (13)

Then I'm faced with the choice of new heads, or having some copper ones made up, or in a bodge it and scarper sense 2 gaskets :S

But tbh the 1.6 should be fine, but as long as too much hasn't gotta come off.

My hope is that its a pure gasket failure, so will not require a skim, but time will tell.

RICHARD J

iTrader: (4)

I'd check the faces with an engineers straight edge & only skim if they are out. If you do skim them a remap will sort out a slight change in CR, but unless you have an after Market ECU or daughter board then that's an additional expense.

Jimbob

iTrader: (13)

Yep, but should be ok for driving off boost, and she isn't used everyday anyways.
I am gonna get it mapped with an esl, but I have to get her running first. ESL planned for late thus year, end of next year.