Does anybody know if there is a difference, and if so what the difference is between a 95 legacy ej22 head and a 98 legacy ej22 head.

 

I am getting some delta cams installed in my 95 legacy but when the mechanic was installing them he noticed the right side heads were warped so he replaced it with the heads off of a 98 legacy he had at his garage. So one side is 95 heads and the other is 98, even though the 95 engine is a non interference and the 98 a interference engine, he said they were pretty much the same, my question is, are the heads the same design, will my engine run properly like this and will the cams work because they were made for the 95 model or do i have to have find another 95 head and get him to take the engine back apart and change that side. Also is the compression ratio the same, or do I have nothing to worry about

 

Thanks in advance

hmmm, you'll need to clarify something that doesn't make sense. the 1995 EJ22 heads have dual port exhaust and the 1998 has a single port exhaust head. so from that stand point it shouldn't work.....actually it's kind of funny, to get that to work you'd have to take a dual port exhaust header and a single port exhaust header, cut them both, weld them together in order to bolt an exhaust up to the engine.

 

if it's in the car and running though i wouldn't worry about it. EJ22's are very similar in a number of ways and the heads are interchangeable. it should bolt up and run just fine. now a 1999 would have some issues, but the 98 will be fine...minus the exhaust thing i mentioned already which somehow the mechanic didn't seem to have a problem with!?

 

now...wether or not your car is an interference engine or not now i don't know. i would imagine the interference designation comes from the pistons, not the heads in this case. so i would think you still have a non-interference engine all the way around.

 

what in world did you do to this poor thing to warp the head that bad....overheat, radiator, hoses, thermo??

[...] i would imagine the interference designation comes from the pistons, not the heads in this case. so i would think you still have a non-interference engine all the way around. [...]

Yes, on '97 and later 2.2 engines the piston crown was modified to increase the compression to 9.7:1, causing interference; with the original ('95) pistons, that's not an issue.

 

Dual versus single exhaust ports, however, is another matter! Has the mechanic actually reinstalled the engine?

noticed the daul verses single and found another 95 head, problems fixed, thanks for the info