There are four segments to this question. :)
Can a roller rocker SR20DE head physically bolt up to an SR20DET block, such as one from a Bluebird SSS? If yes, will the coolant and lubrication passages line up? Am I forgetting any other reason that the roller head couldn't bolt to the low-compression block and operate? Will either or both of the cast turbo exhaust manifolds bolt to the low-port head?
I quickly searched this forum, but found no answers; searching tips welcome. :)