[Enraged]

i wake up everyday not wanting to go to work, and since my drive to work is only about 2 minutes, the car is barely warm by the time i get there, so no boosting....

im not sure on pistons. 2jz is 86mm bore x 86mm stroke, perfectly square engine while (i think, not sure) the1jz is undersquare (shorter stroke and larger bore) which lets it rev so high, and the 7M is oversquare, (longer stroke and smaller bore) which is one reason why is almost always has larger torque than hp.

i think it all depends on what you want. a dyno queen 2JZ that puts out 900 rwhp for 1500 rpm, a 500 rwhp 1jz that has a FAT powerband and revs to 7500, or a built 7M. for the cost of a 1jz or 2jz conversion with mods to get to bigger power, you can build a 7M that will rev to 10,000 rpm, hand 600+ rwhp and still have cash left over for suspension/rims/paint/interior.

i would go 1jz just becuase of the twins, no/very little lag, and the fact that only a handful of people in north america have done it.