I've done alot of searching but some of the articles and threads are vague(doesn't specify if the 1UZFE is the pre-98 or post-98/VVTi).
Main thing I would like to know is, how similar are the post-98 1UZFE VVTi and 3UZFE engines? Mainly main bolt size/stud; is the VVTi version of the 1UZ same...