dp213 Posted January 15, 2016 Share Posted January 15, 2016 A Subaru Mechanic I met swears that using the high temp cooler spray on the head gaskets when installing them is the best way to do them. Especially on the dual cam 2.5 Any thoughts? Thanks Link to comment Share on other sites More sharing options...
dp213 Posted January 15, 2016 Author Share Posted January 15, 2016 Sorry meant high temp copper spray Link to comment Share on other sites More sharing options...
ccrinc Posted January 15, 2016 Share Posted January 15, 2016 I agree. We use the Permatex Copper Gasket spray on everything up tthrough 1999. With the EJ25 SOHC engines, we use turbo head gaskets, so no copper spray. Emily Link to comment Share on other sites More sharing options...
idosubaru Posted January 15, 2016 Share Posted January 15, 2016 Others on here use the copper spray too, ivansimports does like a dozen EJ engines a month I think and puts something on his, though he doesn't give a brand/specifics: http://www.ultimatesubaru.org/forum/topic/129488-ej22-head-gasket-replacement-question/ More important IMO is resurfacing the heads and block. If you're looking for additional precautions I'd look into resurfacing the block. Not just for flatness, but quality RA/surface roughness. Link to comment Share on other sites More sharing options...
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