Hello,
Getting some funny business in my car probably a head gasket knowing these engines (haven't taken it for tests yet etc)
But a used 257 short block out of an 06 STI (65xxx kms) popped up at what I believe was a good price ($1000)
Would the ej257 bolt up in place of the stock 255? My engine has only done (120xxx)
AFAIK only difference between the two is the Pistons which would bump up the compression ratio a bit, suppose a thicker gasket could amend this though.
TL;DR is it worth my money or just buy a bigger turbo for the 255, chasing 200kW tops anyway.