redwards

iTrader: (6)

Evening all,

I was wondering if a wrx open deck block can be bored out (perhaps to a 2.1) I have some bore damage to a block and was thinking of grinding it out. Obviously new pistons will be required, my concern was if the block was strong enough.

This is the damage I'm trying to get rid of





Any (constructive ) comments welcome

Thanks, Rich.

stevemoir

iTrader: (24)

buy my 2.0 CDB off me

https://www.scoobynet.com/subaru-par...available.html

redwards

iTrader: (6)

It isn't my money to spend, but I'll certainly pass your thread on to the owner.

chasey

iTrader: (2)

i wouldnt waste my money, rebore then larger pistons is half way towards a 2.1 stroker build.. Would just bite the bullet and buy a cbd or ej257

Rally fan 555

iTrader: (7)

Rear thrust conversion ? is that OK for a JDM WRX or will it need converting back ?

beliblisk

iTrader: (16)

You need rear thrust conversion to put ej257 crank in it which is needed for 2,1 stroker

Later blocks dont need to be converted as they are rear thrusted already but as you know the are not CDB

Alan Jeffery

I doubt that would clear at the usual maximum plus 1mm overbore.
An open deck block is good for up to 450 bhp anyway if carefully put together.

redwards

iTrader: (6)

Thanks for the comments guys.

Alan, thanks for posting. As someone who works with these day in, day out your opinion is valued.

The previous cdb was written off, I guess this replacement is a right off, so the search continues.