Hi, folks - just discovered this board.

 

I've got a '99 DOHC (Phase I) EJ25 (from my Legacy) that's got a trashed crank, but freshly machined heads.  I can readily get my hands on a (year unknown) SOHC (Phase II) EJ25.  Will the block swap directly in i.e. with my old manifold, heads, harnesses and hoses?

 

Thanks much.

 

yes, use the correct headgasket - i think you match the headgasket to the block - but make sure all the coolant and oil passages line up properly.

Either head gasket would work.. DOHC HG is a little bit thicker iirc, so the SOHC HG would raise compression ever so slightly.

The head gasket I recommend for this combo is the 04-07 sti headgasket. They're thinner than ej25d and multi layer steel unlike the pos ej251 gasket.