[quote=sherwood;3183748]
personally out of need i'd go FI on a gsr engine, but either way NA or FI the GSR engine just makes more sense. like i said, once you even think about upgrading the internals, you've hit a point where you're throwing out exactly what you paid extra for.[quote]

:werd:

Read this, and remember it...
I was talking about his LS motor. He could just build that with a GSR head, new forged internals & a custom turbo setup for the cost of the ITR engine.

To answer the original question, here's a link with specs to all b series motors.
http://www.hybridgarage.com/tech/bseries.html