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Old 08-30-2015, 07:41 PM   #1
ethandf06
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Default need some advice on my 06 forester xt

last week my forester xt spun a rod bearing at 155k. Im planning on buying a brand new short block. If I go with a new sti block which year should I go with and whats a good vendor to purchase it from? Also will my stock 2006 forester xt heads work with the an ej257? With 155k on the heads what all should I get done to them? I'm not looking to do anything crazy with it, maybe 300hp eventually. For now I just need to get the thing running reliably again. Also what other parts besides oil pump,water pump,timing belt kit, full gasket kit, and getting the heads machined flat should I need?
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Old 08-30-2015, 08:12 PM   #2
Blingstrom
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Having the heads rebuilt is an excellent idea while the motor is apart. Had mine redone at 103k and all valves were on the tight side and had all new buckets fitted.

If you spun a bearing you should def get a new oil cooler housing as those can never been cleaned well enough and should just be replaced. Also a nice upgrade is a steel braided turbo oil feed line as the old unit can break or crack when removing. A killer b oil pickup is a very great upgrade over stock as they tend to crack and lose oil pressure and could take out a new block.
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Old 08-30-2015, 08:25 PM   #3
ethandf06
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Ya I was looking at the killer b oil pickup too. Whats the average price to get heads rebuilt? I'm planning on installing the short block myself with the help from my buddy who is a mechanic. The warranty will probably be void if i do it myself and if its not the motor that belongs in the car correct? I can't afford to pay 6 grand for a shop to install it.

Does anyone know of a good thread for removing and installing a new short block? Im going to pick up a chiltons manual. For now by myself I can atleast get the motor out of the car and the heads off to get sent in to be machined if needed.
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Old 08-31-2015, 12:18 AM   #4
Blingstrom
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Head rebuild is pretty much based on the buckets they have to replace and if anything else was damaged. For all the buckets I think around 600 is good place to start. I would assume that machining the heads would also be part of having them rebuilt. Call around to your local machine shops. They should be able to give you a good quote.

I went the same route and took it out and put it back myself. Quite a bit to be saved on just that alone.
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Old 08-31-2015, 12:21 PM   #5
MrTris
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Replacing all the buckets is indeed $600. That's a sole cost, though. Having the heads taken down, cleaned, refreshed, new valve guides pressed in (from your gasket kit..), valve grind and re-lap should run you no more than $400. Hope and pray that they don't grind all your valves down too short, or you WILL need new buckets, and, if too short, you'll need a new valve.

Search around for a machine shop that regularly does turbo Subaru heads so there's no question as to what needs to be done.
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Old 08-31-2015, 12:30 PM   #6
MrTris
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Quote:
Originally Posted by ethandf06 View Post
Ya I was looking at the killer b oil pickup too. Whats the average price to get heads rebuilt? I'm planning on installing the short block myself with the help from my buddy who is a mechanic. The warranty will probably be void if i do it myself and if its not the motor that belongs in the car correct? I can't afford to pay 6 grand for a shop to install it.

Does anyone know of a good thread for removing and installing a new short block? Im going to pick up a chiltons manual. For now by myself I can atleast get the motor out of the car and the heads off to get sent in to be machined if needed.
At the very least, get a new OEM pickup --- they're about $20 from your local dealership. Otherwise, the KB is an excellent choice, it's far and away, better than the stock unit.

As for motor pull and replacement -- I wouldn't advise using a manual you can buy at any auto parts store. See your PM box regarding this
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Old 08-31-2015, 01:56 PM   #7
monkeyposeur
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Moroso oil pickups are very nice and about $100. If you get your heads worked on I would wait until you torque the heads down before purchasing new buckets. Of course check what they are after the shop has worked on them, but make sure you measure the lash again after the heads are torqued down. Once torqued down, the lash will tighten up, anywhere from .001-.005. Last set of heads I installed 13 of the lash clearances tightened up.

It is possible to carefully grind the inside of the buckets with a drill press and a dremel grinding bit to avoid purchasing new ones, but do so at your own risk. But it is extremely time consuming depending on how much and how many need to be ground down.

Just download or buy the FSM if you're going to pull the engine yourself.

It's possible to lap the valves yourself if you're feeling adventurous. Replacing valve guide seals is really easy. Company23 makes a great tool for compressing valve springs. I'd have the machine shop check the valve guides before replacing them though. They usually last a very long time and add a bit to the expense.
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Old 08-31-2015, 02:51 PM   #8
Max Capacity
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When you order a ej257 you get the latest version being built. You order the gasket set for your year car.

I put a EJ257 in my 05 Legacy GT 3 years ago.

Get an OEM oil pick and new oil pump and cooler, have your heads rebuilt. I went with ARP head studs too.

Been at 21psi for 60,000 miles now, engine runs great.

Where do you live and who is your Tuner ?

I know a great machine shop and a great Tuner. My machine shop assembled my heads they rebuilt onto the SB, they give a complete long block. All I did was bolt on the FW, crank pulley, intake, exhaust and turbo.
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Old 08-31-2015, 03:28 PM   #9
ethandf06
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I live in Yakima Washington. So the compression ratio shouldn't change when bolting up my stock 06 xt heads to an ej257 correct? Should I order the motor directly from Subaru or should I find a vendor on here? Thanks again for the help everyone I can't wait to get her back on the road.
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Old 08-31-2015, 03:50 PM   #10
monkeyposeur
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Compression ratio will not change. It's your call where you buy a shortblock. Lots of vendors on here though. Look into an OEM block vs an IAG block (or another vendor). It's not a whole lot more to get a mild built block. But if your not looking for a lot of power OEM is just fine.
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Old 08-31-2015, 05:34 PM   #11
Max Capacity
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http://parts.bestbuysubaru.com/Subaru___2000-2009.html

that site will sell you a ej257 and gasket set for your year car at 25% off. Lot of us Legacy guy's used them for the ej257. Call them and talk with them so you know your order the right part.

After the engine is broken in, get it tuned so its off the stock MAP.

Here's another site.
https://subaruonlineparts.com/sop-parts/#parts

Last edited by Max Capacity; 08-31-2015 at 05:48 PM.
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Old 08-31-2015, 08:40 PM   #12
ethandf06
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You guys are awesome thanks a lot for the help, ill keep everyone posted on the progress!
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