solidxsnake Posted June 2, 2018 Share Posted June 2, 2018 The current motor in my '07 spec.B is on its way out (I think it's a head issue, worn valve guides/seals), and in the interest of getting it back up and running soon and cheap, I'm wondering what difficulties I'd run in to with swapping in an '05-'06 longblock into it. I know the heads are different and don't have the air-pump, but otherwise I'm not sure what I'd need to worry about. I don't want to swap ECUs, so I'm mostly worried about wiring... are the harnesses plug-and-play? Will I be able to use the fueling setup (top-feed) from my car on the earlier longblock? Are there any different sensors that don't exist on the earlier ones that are required on the later ones? Haven't found much information on this sort of swap, so looking to ping the minds of anyone here who can help me out. I should add, I'm not worried about reliability too much. It's not my daily, and I intend to keep the old long-block to rebuild it. I'm aware I'll need to re-tune as well. Link to comment Share on other sites More sharing options...
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