A Motors Manual or Haynes Manual for a vehicle with a 194 will walk you through a rebuild. A 62 to 67 Chevy II or Nova came with that engine. Also a very good source of info is Leo Santucci's book Chevrolet Six Cylinder Power Manual. Leo's book is avail from this website.
The pistons need to have their pins pressed in and out of the connecting rods, a job for a machine shop, and the crank should be cleaned and inspected for possible cutting or polishing by a machine shop too. Since it's you first engine the best thing is to have the block and crank work done before you order the rebuild kit so you can get the correct sized pistons, rings, and bearings. The machine shop will tell you how much, if any, they had to bore the block or turn down the crank journals. Then you order the kit based on that information. PAW is pretty good. I've used their kits several times in the past with good results and they generally offer a choice of quality and levels of performance in most engine kits.
Mike
