ive been looking for an engine for my rx for some time now and the only problem i come up with is $CASH$ which i dont have much of. my dad subaru certified and master tech with 23 years tech under his belt now says it would be fine to get heads bored and put bigger pistons and it would run fine. anyone have a website or atleast a lead to a website that has pistons that are .030 over for a ea82t out of a '89 rx??

I am in the same boat but need .020 over.

 

I got a quote from Paeco (http://www.paeco.com/) for forged pistons .020 over but I don't want to drop that much money on an engine that I just want to pass smog with. See below for their response to my question:

 

"

Thanks for your email. A set of forged pistons (we haven't made cast pistons in over twenty years) is $420 in standard bore and stock compression ratio. Add $40 for any overbore size and add $40 for any non-stock compression ratio. We do have the patterns for EA-82 pistons. Chrome-moly wristpins are $160 for the set and the Deves racing piston rings are $104/set. Pinlocks are included with the pistons.

Forged chrome-moly connecting rods are $290 per rod in a set of four. We do not have a pattern for the EA-82 rods, so you would have to send us a stock rod to use as a pattern.

All of the details on both the pistons and rods are on our website at http://www.paeco.com. Please let us know if we can help you.

- Carl at PAECO

(205) 823-7278

"

 

 

I am looking for some cast .020 over pistons at this time just to get the engine back together, and running.

 

Good luck

You can't bore a sleeved aluminium block without a bore-plate to hold it in the torqued posistion relative to the other case half and the head. If you bore it any other way there is a high probability that at least one piston sleeve will spin.

 

That almost always means it's not worth it to bother. Get another block and do a light hone.

 

GD

Edited February 13, 200917 yr by GeneralDisorder

a professional is going to be doing it cause the shop its at right now doesnt have a borer i just need something a little bit cheaper than the above mentioned .020 pistions

Hi,

 

Check eBay, Engine Parts house. ITM brand pistons. Can't vouch for them as I've never used them.

 

hth,

 

Doug

why are these parts so damn expensive?

why are these parts so damn expensive?

 

Cause there is a low demand for them. Each one they make and sell has to recoupe a larger share of the development cost.

 

There really is no point in boring an EA82. Most shops can't or shouldn't do it. GD is correct, a light hone is fine. If you're block has bores that are out of round, or worn out, then just find a different block. Use a Non-turbo block if you have to.

Thanks, Quidam

 

Here is their catalog page:

 

http://www.itmengine.com/catalog.html

 

and the direct link to their catalog see page 56 in adobe or page 557 in lower right corner

 

http://www.itmengine.com/WebBuyersGuide2007.pdf

 

Part numbers for pistons are:

 

Carb - RY6527 They mention different years and different CR under the same part number?

SPFI - RY6527 = same as Carb

MPFI - RY6527 = same as Carb and SPFI

Turbo - RY6530 = 7.7:1 x 92mm MY 85-90

 

Looks like they have Turbo pistons listed on Ebay at standard oversize and +.020.

 

Seriously Quidam you just saved me $300. Still kicking myself for not finding these on my own and all it took was _piston EA82_ in search bar.... tarded.

a professional is going to be doing it

 

Professional or not, if they don't use a bore plate to pre-stress the block it's almost a gaurantee it will fail.

 

GD