Help!!!!

Hey... i have an 86' celica gts with the 3sge engine that came with it. I was wondering if there's significant difference between that engine and the others...such as the 3sgte or 3sge Beams...well of course the lack of turbo and vvti. But, is there a difference in the block designs? The bore and stroke? Help would be appreciated and yes, i've searched my ass off on google.