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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 05-02-2004, 06:40 PM   #1
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Default New Engine

I have a 92 SSE and I need to get a new transmission put in it this summer and I would like to have a new engine put in as well (by "new" I mean rebuilt). Right now I have a NA engine and my question is whether or not I'd be able to have a SC engine put in. The price is going to be about the same so I figured if I could I might as well go with the SC engine. The SC engine has a different casting number than the NA but I didn't know how much of a problem that would present. Any help would be much appreciated.
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Old 05-02-2004, 09:39 PM   #2
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If you'd like the convert to the L67 from the L27, You'll need a new ECM, I assume new HD mounts... New I/P to watch the boost... The list goes on and on...
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Old 05-02-2004, 09:47 PM   #3
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http://www.bonnevilleclub.com/techinfo/?article=43

I'm not sure if that goes into the electronics of it...
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Old 05-02-2004, 09:58 PM   #4
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Thanks for the reply Damemorder. I read the techinfo article and figured since I was getting a new trans that gettting a whole new drivetrain was my best option. I'll talk to my mechanic about putting in a turbo if that'll be cheaper. I'm gonna have about 5 grand to spend, do you think that would be enough to buy a new drivetrain and drop it in?
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Old 05-02-2004, 10:10 PM   #5
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5G'* ought to do it with a rebuilt motor, Might be higher crate.
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Old 05-04-2004, 10:50 PM   #6
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Could someone tell me if there would be any problems with putting a Series II L36 in my 92' sse.
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Old 05-05-2004, 12:13 AM   #7
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I'd suggest if you have the $$ and are doing some mods and want the internals to support the mods (turbo especially) buy a L67 lower end and put the L27 heads on. Better pistons, crank (and rods I believe).
Good luck and keep us notified of how things are coming along.
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Old 05-05-2004, 12:55 AM   #8
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I'd say do both at once. An HD tranny with L67. You can find a series I cheaper then $5k for sure. You'll need to add some wires at the firewall for the boost stuff, and a boost gauge inside will be good. Otherwise they'll pretty much fit right up.

Otherwise a Series II L67 with 4t-65 HD would be the best. You could find one at around the same price as the series I, and you'd have a highly modifieable car. Use a GTP PCM and you have lots of options for PCM upgrades, and an overall more performance oriented computer.

ww.l67swap.com is a great place to start up. They have all the things you'll need, and are in cohoots with all the vendors that will be able to show you exactly what you need for this.
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Old 05-06-2004, 01:24 AM   #9
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Quote:
Originally Posted by Aequitas
Could someone tell me if there would be any problems with putting a Series II L36 in my 92' sse.
I had a crate put in my 94sse, I wanted the series II, too. Long story short, The series II was actually cheaper than the L27, but I would've needed a whole new wiring Harness, and... well a whole bunch of other stuff. It was cheaper to go w/ the year specific motor for the car. But, there are plenty of mods u can do to bring the L27 to life.
Lot'* of guys in here w/ L27'* that r turning them in to beasts.

If you have to go the L36 route, w/ a new crate,..5 k won't touch it!
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