Originally Posted by xhector2013x
So im gunna be buying an 01 rs today or tomorrow, the guy bought it as a project and turns out the SOHC he swaped has some noise in the bottom end, but hes including a 2.5 DOHC for me to swap he is including a DOHC ecu with the car but no harness. so the question is can i just swap the SOHC heads onto the DOHC block and run the same SOHC ecu and wiring harness?
It is that simple. Your compression ratio will be slightly lower but not significantly. I know a shop that buys dohc turbo motors from Europe and swaps the shortblocks into all types of NA 25's and they run great.
The next question is what kind of condition is the dohc ej25 in?