2J head on 1J Block

[Cuthbert]

Hello Guys,

A lot of people are making a 1.5J engine. So what happens to all the left over 1J blocks and 2J heads??? Surely I can pick these up cheaply and make a "-1.5J" engine...LOL. But seriously, the only reason I would do this is because of the price. Also, if I have a NA 2J head on a turbo 1J block, can I turbo the "-1.5J" at a later date?

[RONA]

The 1jz blocks are generally blown to smithereens and instead of rebuilding they grab a 2jz bottom end. Which gives them extra capacity and allows them to keep the same inlet & exhuast manifolds.

Putting a 2jz head on a 1jz block would be retarded, alot of money spent on manifolds etc for little gain in terms of having a better flowing head.

[Cuthbert]

I know the logic says don't spend money on a reduced size engine, just go get the whole 2j to begin with. But I am looking at CHEAP parts here. Say a couple hundred dollars for the head and block, I would make custom intake and exhaust myself. Probably be able to pick up cheap factory ecu for 1J (assuming I can do this as I want to put in a cressida) and hopefully be able to do a cheap "bitsa" conversion. Later on down the track, I would then look at turboing it.

[midnight_purple_GA70]

just dont... end of story...

2jz-gte heads are expensive and thus will cost you $800 or so for a good working one... 1jz bottom ends are cheap but usually broken if someone is parting with it...

also most people do a 1.5jz with an NA 2jz bottom end so the na head putting it onto a 1jz bottom end is a complete waste of time effort and most importantly MONEY

you would be best off buying a 1jz complete motor with loom and ecu... otherwise i can see this heading straight to failtown

[chaserbuddy]

just dont... end of story...

2jz-gte heads are expensive and thus will cost you $800 or so for a good working one... 1jz bottom ends are cheap but usually broken if someone is parting with it...

also most people do a 1.5jz with an NA 2jz bottom end so the na head putting it onto a 1jz bottom end is a complete waste of time effort and most importantly MONEY

you would be best off buying a 1jz complete motor with loom and ecu... otherwise i can see this heading straight to failtown

agreed LOL if your wanting cheap maybe go on the ns forums and put a ca in something.

[Cuthbert]

Don't know what ns and ca mean, but it looks like my suspicions are true. It is not worth it as it will probably end up costing as much as a complete 1j would to buy. Thanks guys, just testing the water as it was a question I had that hadn't been answered.

[Cuthbert]

Out of interest, what is the difference between a NA and Turbo 2JZ head?? Anyone?

[midnight_purple_GA70]

LOTS
do a bit of searching mate...

2jz-gte head
has coil packs
smaller exhaust ports
different port spacing
no distributor
different cam covers
different coil pack cover
different cams

2jz-ge head
distributor
bigger exhaust ports


etc etc

a 1.5jz done with a 1jz head and 2jz bottom end will cost more than a standard straight 1jz-gte complete motor with gearbox loom and ecu... (assuming an auto)

a 1.5jz done the way you were speaking of would cost alot more and be of no substancial gain

[Cuthbert]

You've convinced me. I am currently looking for a 1jzgte or 2jzgte (if I can afford it) as a half cut as we speak. I've decided to go the hole hog, no point trying to to a budget conversion I suppose. Or I will end up with budget horsepower...lol

[white_sandshoe]

Or budget reliability... which is kinda fun to watch... *KaBoom!*

[BEVANI]

The words "budget" and "cheap" just don't go in a sentence with #JZGTE... maybe #GE but not the other.

[mr75]

The words "budget" and "cheap" just don't go in a sentence with #JZGTE... maybe #GE but not the other.

hahah amen!!