Yes and mostly no. For length and block spacing, go to Coaster>Statistics. For other things, open your track in CK and go to Track>Overview that gives you a bunch of semi-useless facts about the coaster. For G-forces, you must ride your coaster in every seat, so for a B&M with 8 cars, you ride it 96 times (3 types of forces*32 seats). Or be practical and ride in every seat in the front and last cars as those'll NORMALLY be the most extreme seats in terms of G's. If you're using an FVD system, the middle will be the force specified (by the creator) as they treat the train as a point-object with no mass (meaning the outermost seats will still be the most affected). CK doesn't know your friction or any speed details, so it cant give any forces or duration.
EDIT: I'm directing you to this site, which may further help you in all your questions. To be an active member, you must first register for the main site (no worries, it's free) and then 'apply' for membership to the forum (just saying your regular username, etc. because they're not connected like all aspects of TPR-and your in). Or you could just search within and read without a membership.