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2.5L head removal. I feel like im missing the obvious.

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98 2.5 frankenmotor build.

So I'm looking at the 2.5 headbolts. Am i to remove the cams in order to get the head bolts out? The Haynes manual is as helpful as a milk bucket under a bull. It tells me what order to remove the bolts, but nothing about how to access the bolts with a socket.

I cant wait to get these heads off and put the 2.2 heads on.

Stephen

  • Author

Thanks. I guess I'll just go bang on those cams.

once the bolts are removed they'll come right up.

Watch the torque on install if you want to keep the heads. They are INCH pounds not foot lbs.

 

O.

  • Author

Not bothering to save the heads. ill reassemble them loosely in case someone else wants them. Id rather stick with the 2.2.

First time with a frankenmotor, but I'm keeping the 2.2 from the car intact in case I build this motor wrong. Having fun either way.

  • Author

thats an interesting combo. smaller block but with better air/fuel flow. truly, subaru is a

lego set.

Keep everything.

The 25D headbolts are a different length than the 2.2.

Also the mounting point and the dip stick length are different.

The ect may be different and depending on the year may be in a different location on the crossover pipe (ie: front or back).

More power to you

 

  • 1 month later...
  • Author

Thanks for the advice.

I've been taking note of the differences. I'm guess I'm using this as a learning experience.

I just hope it runs.

 

Sorry for the delay. Life suckerpunched me and I'm just getting back to this project. I need it running because I'm selling my other outback.

 

I think it's clear what you're working on. But for future reference. DOHC subarus (I think all of them, certainly EJs) require removing the cams to access the head bolts. SOHC engines do not.

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