i have been looking into the j24b for sometime now too. I have been curious about the VVT system and parts that could be swappable. The good news is that it looks the coils and some of the internals are. If you want to bore the 2.3l i know its possible and the pistons should swap along with the rods. yet until someone pulls the engine we won't know. as for the block being open deck that is a box...



