engine block weight differences between 3uz 2uz 2jz

[makaveli200369]

Does anyone know the block weights of the 3uz 2uz and 2jz engines? Im curious to know if the long inline 6 weights more then the 2uz cast iron V8. Thanks

 

[Lextreme II]

I think the iron block would weight more then the 2jz. The 2uzfe short block is 82 lbs heavier then the 1uzfe shortblock. 1uzfe and 3uzfe is about the same weight.

 

[cowboy bebop]

Word is that a complete 2JZ longblock is between 600 and 700 lbs with turbos

 

[Lextreme II]

The 1uzfe and 3uzfe is about 385.81 lbs
2uzfe is about 467 lbs.

 

[makaveli200369]

If the 2uz complete weighs 467lbs then it is still lighter then the 2jz which comes in at 594lbs complete. Thats still considerably lighter. I already have a Supra TT. But I plan on purchasing my friends Supra TT that has a blown motor and tranny. And swapping in a 2uz and stroke the motor since it has more possibilities due to the bore. Wont have to worry about having thin sleeves while trying to boost 25+psi. I know that DART has those custom sleeves for the 1uz/3uz but by the time you purchase those machine the aluminum block you've spent quite a bit of money. Thats why I got curious on different of weight between the 2jz and 2uz.

The 1uzfe and 3uzfe is about 385.81 lbs
2uzfe is about 467 lbs.

 

[Lextreme II]

Have u seen this project? www.lextreme.com/1uzfe.html

 

[makaveli200369]

Thats some good stuff. Thanks for the link. Do you know where this project is currently?

 

[Lextreme II]

Low on money... however, forged pistons are here... and getting few more parts.. then its time for a shortblock buildup.

 

[jibbby]

That's news to me that the 2JZ-FE 6 cylinder motor weighs in at 130 pounds heaver then the Xuz-fe motors in comparison....

Although the 2JZ-FE is a motor that can handle more horsepower, I do believe the weight spec's and torque spec's offsets the standard that the 2JZ-FE motor is a superior motor to the 1uz-fe....

Is the 2JZ-FE motor really a better motor then the 1uz-fe's?

 

[turboandrew]

2JZGTE weighs a lot because the turbo assembly is very heavy and the flywheel alone is 38 lbs. If you put 2 turbos on a 1UZ and a manual transmission (flywheel on engine) I doubt the weight difference will be a lot.

 

[Toysrme]

All the Toyota i6's are very heavy. turbo, or not compaired to the entire Toyota v6 line. Which weigh from 340lbs to 420lbs. A 2jz-ge is more 490-520lbs range.
To which, the car based uz blocks are lighter.
Sorry, I can't seem to dig-out my later 2jz-gte paper that lists the weight. It's very, very heavy tho. Atleast 575lbs, wouldn't be surprized if it was 590lbs.
So much weight & physical size on those i6's...












hehehehe. That N/A 2gr-fse 3.5L v6 is not that far off & is far more than 100lbs less weight. The new ur-fse's crush everything lol!

 

[cribbj]

The 2JZ longblock without turbos or manifolds, but with the flywheel, is around 490 lbs.

 

[Toysrme]

Then I guess 490 it is. Wish I could find that newer paper... It's in the original SAE paper on them I think too.

 

[turboandrew]

So, If one were to do a manual with a V8, a 1UZ at 386 lbs, plus a medium wieght flywheel would be about 400 lbs, and a 2JZGTE less turbos is 490 lbs, wow a weight savings of 90 lbs! That is good news.

John, that weight was with no belt driven accessories on that 2JZ?

 

[cribbj]

Andrew, that was a figure DaveH gave me back in 2003 for a GE longblock he shipped. He said it had "most" of the accessories, and included a starter and a flywheel.

I didn't ask him if it had the alternator, P/S pump, A/C compressor, etc. however since he said it was a "long block" I'm assuming it had none of these. I was also guessing it didn't have intake or exhaust manifolds either, but can't be sure.

I need to contact Dave about something else, so I'll ask him to clarify that figure if he can remember the details.....

 

[markstoys]

I weighed my complete 1UZ after pulling it from the car and it weighed in at 420 lbs.

Mark

 

[milnersXcoupe]

I weighed my complete 1UZ after pulling it from the car and it weighed in at 420 lbs.

Mark

Thanks Mark !


The 2UZ FE 4.7 engine block weighs 82 lbs. more than a 1 UZ = 502 lbs.:yeah:

 

[WDoherty]

i still think a 2jz-ge and 1uz weight is not far off of each other. An sc300 is with manual is advertised at about 100lbs lighter than the sc400 even with the 2jz. I know wheel size, brake size, and the manual all help, but still 100lbs lighter is alot so the 2jz-ge can't be that bad without that heavy manifold and twin turbo system on there.

 

[milnersXcoupe]

Without it - how is the power delivery ?

Having had to think in terms of 600 / 700 / 800 lb. 2 valve cast Iron push rod American engines - in cars like the AMC Gremlin as the AMC 401 is over 700lbs.-

I still find humor in the quibbling over using a 502lb. 2UZ FE with its' favorable bore / stroke / stable block / 32 valves / Belt drive / Alloy heads - virtually all that the stillborn Chrysler A-925 Race HEMI was to be, in Toyota cars vs the 420Lbs. 1UZ FE.

Just move the battery off the front wheels to the Trunk -

 

[JustenGT8]

Great info Toysrme, do you have the SAE paper on the early (non VVT) 1UZs?

As for weight bias *coupe, i know with my proj, losing a meager 80kg overall and shifting the balance from 60/40 front/rear to 55/45, transformed the handling of the car on the track.

Horses for courses...... for a street car i agree it's not much of an issue (i still prefer the 6 bolt mains though i have to say) but if you are looking at autocross and/or circuit work then a very major factor to consider.