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Will 84 Subaru engine work in 81 Subaru


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The swap you're planning to do isn't that bad of one at all. I would recromend just swapping the longblock and reuse the intake, carburetor and distributor form the 81 that you have, those items are different on an 84. Also a 84 engine will have on each exhause port a piece of the emission system that you do not need and you will need to get them off before your Y-pipe will bolt to the engine correctly.

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