Anyone Rebuilt an Engine?

[panthro]

As above, anyone ever done it in their garage?
Since getting the Mk3 Supra I've been immersing myself into the world of the Jap car scene and have to admit I'm enjoying it. People are ridiculously enthusiastic and there isn't much in the way of snobbery as there is in for example German cars (BMW).
Anyway I have always wanted to give it a go and as there are so many parts, guides, info etc available I'm toying with the idea of buying a 1JZ or 2JZ with the intention of stripping it and rebuilding it with some minor upgrades and dropping it into the Supra.

 

[panthro]

JZs are very strong and reliable, not to take anything away from you but being rebuilt by a novice is probably the worst thing that could happen to one.

What could possibly go wrong!!

Seriously though, if I stick to plans, have the correct tools and knowledge on tap what could go wrong?

 

[panthro]

Thanks for the replies. I am having seconds thoughts but if the 7MGTE in my Supra goes pop then a 2JZ is definitely replacing it and even if I don't build it I would definitely like to fit it myself.