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S4 motor in an 86 (s3)
Pelicans,
I may be getting access to a spare S4 motor. My question to all of you is this. Is bolting an S4 motor into an S3 engine bay a direct bolt in, or are there modifications that must be made? The s4's have knock sensors, whereas the 85-86 MY do not, so can I use the EZK, and LH from the 86, or do those need to be replaced?
Also, is it worth it to do this?
I would like to hear your thoughts. I've searched, and surprisingly enough, found no pre-existing threads on this topic.
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