i'll start you off, but google is a better friend for this info.
1uz is 4 litres 3uz is 4.3 (i think)
there are a few companies that make pistons, cams, rods etc. (some place in queensland by memory)
and there is no factory manual option but again a few places offer bellhousing conversions to match them to w58's and R154's
i could find out the specifics but i am going to eat morning tea now and that is more important to me.
i have struggled to find a relaible weght measurement and to find out what it includes/excludes for any of the uz seriespopular theory is it is between 180 and 220 kg's but as for what it is relating to is anyone's guess.
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