NIckCawks, Tom does some trick stuff to his premium engines so I believe they are worth it for sure. Standard engines aren't that much less and you pay extra shipping on those so for less than $200 you get the good stuff with a warranty. Sometimes I do a Standard engine. When you look at parts the standard engine is pretty dang close to the parts cost. If you check engine prices... Tom is tough to beat. As for best quality, perfect, none better..... that's hype. A correctly built engine is a correctly built engine. Find somebody you like dealing with and get r done.