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Old 07-09-2019, 01:31 PM   #2
Motts
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Join Date: Jul 2017
Location: Salt Lake City
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I think as long as that year Z3 is still cable throttle it will work out. The E46’s have an electronic throttle and swap gets complicated.
Also, depending on your goals, you may be better off with iron block M52. I’m rebuilding a Z3 engine for my swap and heard it’s not uncommon for headbolts to strip threads on the older aluminum blocks when reinstalling the head.


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