man they are a great car and well manufactured if the head has been done thats a big bonus!!!!
You might whant to look for oil in (well it dripps out) dizzy cap the 7m's have a little prob with the bearing seals in the dizzy and yeah you might get the standard oil leaks
uuummmmm...... there is somthing that cracks on the rear suspention i forget what it is but i know its easily repaired with a weld...
my advice to you is this... if things start stuffing up and you look like the engine might be on the way out start saving for a JZX81 Toyota Chaser half cut
DO NOT spend the money else where i so regret replacing 2 7m's i could of put in the 1JZ and got it over and done with at the start
ps I love driving my car now i couldn't explain how great it feels