Are all 1UZ's the same?

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02-08-07, 10:41 PM

HI98GS

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Are all 1UZ's the same?

I am wondering if the bottom end of a 96 SC400 is essentially the same as a 98-00 GS? If anyone knows please tell me.
Thanks

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02-08-07, 11:10 PM

Spyder78

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I dont think so.

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02-08-07, 11:19 PM

trbopooh

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check out this chart from lextreme's website. it shows the compatability of parts from the different v8 motors.

http://lextreme.com//forums/attachme...9&d=1156818465

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02-08-07, 11:57 PM

ElitistK

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there was a total of 2 revisions of UZ. First version is the 250hp one, second one is the one in '97 SC with 270-280hp? third one is with vvti on the gs400 with 300hp.

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02-09-07, 06:37 PM

jgscott

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Quote:

Originally Posted by ElitistK

there was a total of 2 revisions of UZ. First version is the 250hp one, second one is the one in '97 SC with 270-280hp? third one is with vvti on the gs400 with 300hp.

No, no, and no.

1. There are 3 different variants of the 1uz, 91/92 - 95 LS4 and SC4 ( 250hp ), 96-97 LS4 and SC4 ( 260hp ), and 98-2000 LS4 and SC4 and ( 290hp ) GS rated 300hp.

Blocks are same but rods and pistons are different.