2002 EJ25 back to EJ20 ?
Hey guys, I'm fairly new to the WRX tuning world. Not so new to the tuning scene.
Anyway, ill get to the point.
I just bought a 2002 WRX (vin code correct) It says it had a EJ205AW3B9
Tanny says TY75VN2AA.
Pretty much, i bought it from the guy that said it probably had a blown head gasket, So i ended up taking the block out, to check for a blown head gasket .
Well, to my surprise, i find that cylinder #3 (It has a reputation) has rough spots on the wall, and signs of blow by.
My prognoses, it was a EJ25RS block (newer?) Its stamped with EJ25. That has non turbo pistons ect, That was converted to a turbo block. and i think thats why it got blown. It also has DOHC, which isnt stock for the 02 WRX.
It has signs of oil in the coolant, and coolant in the oil. I checked the metal gaskets, no signs of a blown one.
So i have three options, I could spend the money rebuilding, rehoneing the EJ25 block, new actual turbo pistons, resurface the DOHC heads.
Or i can buy a JDM low mileage EJ20 turbo short block, sell my DOHC heads and put SOHC. on there for gas milage, and better internals
And i will leave my number 3 option to you guys.
Whats your opinion? EJ25RS or EJ20 turbo block?
Bloth blocks and wiring harnesses/manifolds ect should work between each block right?
I appreciate it.