This. Buying a kit and reassembling without machining, balancing and verifying clearances is just going to cause you tremendous heartache and financial pain. Many reputable builders won't even touch an engine that has undergone this "process" and then failed. "Do it right, do it once."IMHO, I am not a real big fan of rebuild kits for most engines.... as many times they may have a few real quality parts but most of the time it is of the "lower end".... IMHO, it is best to tear the engine down, see what you need (including machine work- very likely) and then visit a good local machine shop.. one that has been around a long time!!! They will know 1st hand which mfg still has good quality parts (versus the ones that have been bought out and selling 'junk" under their name) and can get you all the other items you need such as gasket kits, etc. at a better price that what you could likely get at the 'chain" (ie junk) auto part stores.