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Oldsmobile Forum: Pre-Series 1 to Series 2 Supercharged Swap
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Old June 30th, 2017
YoungOlds_89 YoungOlds_89 is offline
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Pre-Series 1 to Series 2 Supercharged Swap

Hey all, I've recently purchased a 1988 98 Regency Brougham with 139k miles. She needed a new cat and a new EGR but, she's running all right minus a few minor issues... just a few common problems from what I can find. However, I am toying with the idea of making her a sleeper. She's got the Pre-Series 1 LN3 3800 V6 and, while I don't have any complaints with the engine, it's not the easiest or more efficient engine to tune. So, my main question is, how hard would it be to swap a Series 2 Supercharged engine and transmission into her? Has anybody done it before? I was thinking about pulling the engine from an early 2000's Park Avenue Ultra or Grand Prix GTP. Any thoughts or advice on this? I'm sure getting it in there shouldn't be too hard, my main worry is with the PCM and ECM switch overs. Any advice is appreciated!
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Old July 1st, 2017
Rocketguy Rocketguy is offline
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This thread should be of interest to you.


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Old July 2nd, 2017
YoungOlds_89 YoungOlds_89 is offline
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Hey, thank you so much! I finally sat down to read it through and it's a bit more work than I was imagining. I plan on keeping my "new" Olds for a while so I'll have plenty of time to decide if that's something I really want to do or not. That power would be amazing in her though!
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Old July 7th, 2017
RamaRamone RamaRamone is offline
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I was about to ask the same question 'till I came across this thread. Thank you for sharing, Rocketguy! I'll let my friend know of this, he's the one with the same problem.
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