Going with a 1jz

[Poodles]

Originally Posted by Target70

it has been many years, but I heard something about the 1jz head having better flow or compression or something, and you could swap it onto a 2jz block and make a 1.5jz. There is no punch line to that, I just thought I would throw it out there.

Nope.

Originally Posted by JP

1.5J is a waste of effort, 2J head has been proven to flow better stock for stock. The reason people do 1.5J's is to retain their existing 1J loom, plenum, big single manifold etc.
I've built a heap of cars with the full range of JZ motors, my favourite of the lot is a vvti 2J with big single setup.

It was also done in Japan to be sneaky and get more displacement (as their licence levels are based on displacement)

Originally Posted by Dipstik-sportech

A third the price? Easier to find? Cheaper trans?

Not cheaper anymore as the supply is drying up. Not easier to find as we never got the 1JZ here. Trans doesn't matter as the R154 will bolt to either so long as you have the right bellhousing.

The real issue (as usual) is getting everything working (if the dash doesn't 100% work, it's a shit swap IMHO). If you're going standalone to get everything to work, and you're going custom on the turbo install, it's a hell of a lot cheaper use a 2JZ-GE long block and boost it (or build it for boost). The GTE head is nicer but it costs a lot more...

[Dipstik-sportech]

You can get 1jz's up here all day for 1000-1500$, which in american cash is what, 100$? Buy one up here and ship it down, not hard. 2j's run 4-5000$ without a trans.

[inertia]

Originally Posted by JP

1.5J is a waste of effort, 2J head has been proven to flow better stock for stock. The reason people do 1.5J's is to retain their existing 1J loom, plenum, big single manifold etc.
I've built a heap of cars with the full range of JZ motors, my favourite of the lot is a vvti 2J with big single setup.

This but non-vvti