I have ridden in a LSX FC and that really changed my mind on what I wanted. I had first bought a street ported TII for my project but decided that what I wanted to do Id just need to go piston. I did sacrfice and get a LT instead of a LS but it will be a good starter for me.
a LT isnt a bad choice, hell turn it into a 383. while you have it out.