OneJoeZee said:
There are many pros and cons, and you know it. The 1JZ is a viable replacement for a 7M but, IMO, it isn't for a 2JZ.
I think that the only way I would throw a 1JZ into a SC300 or JZA80 is if the existing engine was a GE that suffered catastrophic damage/failure [engine fire, rod through pan, etc] and I had access to a dirt cheap 1JZ clip in excellent condition.
The 1JZ is an awesome engine, Joe - I wholeheartedly agree with you on that, but you are so far up that engine's ass in praise that you don't address the few BAD things about it. With as much 2JZ parts compatibility and substitution you can do, there are some parts that are strictly 1JZ. What will the masses do when the 1JZ supply dries up and you cannot get those parts? 2JZ owners can walk into Toyota and order any part for their engines, where 1JZ guys will be left high and dry to find new means of parts improvisation.
Really, when you think about it, guys with worn out 1JZs will end up gaining back that 0.5L they threw away when they slip a brand new 2JZ block under their head anyways.
I think that this thread is really great, and I will be watching it closely to see just how well this goes. I was thinking about getting a SC300 and putting a 2JZ-GTE in with all of the parts that I had amassed for my MA70->2JZ project, but I may just get a SC300, tinker with it's GE and buy another A70 chassis and keep my GTE parts to continue my old project.
